Share This Article:

Taenia solium Cysticercosis in Sub-Saharan Africa: Perspectives for a Better Control

Abstract Full-Text HTML XML Download Download as PDF (Size:492KB) PP. 105-121
DOI: 10.4236/aid.2019.92008    189 Downloads   350 Views  

ABSTRACT

For decades, Taenia solium cysticercosis (TSC) has remained an important constraint for public health and economic well being of the predisposed communities. Despite the fact that the disease is easily preventable, humans remain foci for transmission. They harbour the mature form of the parasite (Taenia solium) which may be curable at this stage and also easily prevented from contaminating pig feeds and environment with eggs of the parasite to break the cycle. Researchers, knowledgeable communities and international organisations such as the World Health Organisation work hard to make the disease a history. Nevertheless, persistence of the disease in endemic regions such as sub Saharan Africa is kept on increasing. While TSC in human may serve as a silent killer as it can go unnoticed for years, the immanent social cultural settings and lifestyles of the communities in endemic areas form the main concern on the epidemiology of the disease. Unless lifestyles change in endemic regions, front line research might rarely find its way into applications in an area of huge societal and economic impact, the TSC epidemiology. Sincerely, transmission of TSC is favoured by poor sanitation and hygiene which is motivated by lifestyle and poverty. What is perhaps missing is the knowledge on “why is the communities involved ease indiscriminately while almost every member of the community in endemic areas knows that indiscriminate defecation may harm their health? What social drivers are behind this motive (bush defecation)? How best can the disease be controlled and monitored? This review recommends for developing and implementing an interdisciplinary OneHealth community-based control mechanism and monitoring (surveillance) programme as standpoints towards eliminating TSC in sub-Saharan Africa and the rest endemic regions.

1. Background

Taenia solium cysticercosis (TSC) is one of the emerging infectious zoonotic diseases of poverty with global public health concerns [1]. TSC is a vicious worm which its persistence is related with poverty, ignorance and disproportionately affects the poor. It causes considerable health impacts in endemic countries [2]. However, because of globalisation and increased tourism, the disease crosses borders and poses threat worldwide [3] [4]. TSC is a chronic disease which among other body organs and tissues, infects human brain resulting into epilepsy, headaches and even death [2] [5].

The disease mainly affects the health and livelihoods of subsistence farming communities in developing countries of Africa, Asia and Latin America. It also reduces the market value of pigs and cattle, and makes pork unsafe for human consumption. This is to say the global burden of TSC remains indispensable. It is a leading cause of deaths from food-borne diseases with a considerable total of 2.8 million disability-adjusted life-years (DALYs) [6] [7]. T. solium cysticercosis is the cause of 30% of epilepsy cases in endemic areas as such over 80% of the world’s 50 million people who are affected by epilepsy live in low and lower-middle income countries where people and roaming pigs live in close proximity [8].

Transmission of TSC follows ingestion of T. solium eggs from the parasite’s carrier through contaminated water and foods causing human cysticercosis ( HCC ) in man and porcine cysticercosis ( PCC ) in pigs. The parasite, T. solium metacestodes, in man can infect the central nervous system resulting into neurocysticercosis ( NCC ). Neurocysticercosis produces long-term health problems [8]. It is one of the major causes of acquired epilepsy in endemic areas [2] [9] [10] [11] and the most common helminthic disease of the central nervous system [12]. The disease is ranked as the first on the global scale of foodborne parasites [13]. About 0.2% - 0.3% of the population in sub-Saharan Africa suffer from NCC related epilepsy [12]. Based on the epidemiological criteria, TSC is reasonably eradicable: a single definitive host (human tapeworm carrier) and the sole source of infection for intermediate hosts; domestic animals (pigs) as main intermediate hosts; no important wild reservoirs; and availability of interventions for control [14]. Socioeconomic, behavioural and environmental factors impede the reduction of the disease in many endemic areas.

2. Epidemiology of TSC

TSC in sub-Saharan Africa causes severe health and economic problems [15]. TSC is a zoonotic disease that occurs worldwide primarily in rural and poor urban communities in developing countries of Latin America, Sub-Saharan Africa and Asia where pigs are raised under free-range systems with poor sanitation [16]. Humans are infected by the adult worm of T. solium following ingestion of the cysticercus in undercooked infected pork. The cysts contained in the undercooked pork evaginate and attach to the small intestine by their scolex [17]. Adult tapeworms develop up to 7 m in length; reside in the small intestine of the human host for over 20 years (if not treated) producing about 1000 proglottids, each with about 40,000 - 100,000 eggs [18] [19]. The tapeworm (T. solium) sheds 8 - 10 proglottids daily [19] by which an infected person can contaminate the environment by 320,000 - 1,000,000 T. solium eggs daily. High environmental contamination rate by T. solium eggs just from a single tapeworm carrier may pose a high risk to TSC infection in human from the community involved.

Although dogs, cats and sheep may harbour the larval forms, pigs are the natural intermediate host for T. solium [20]. Following ingestion of eggs or gravid proglottids of T. solium by both pigs and humans, the eggs hatch into oncospheres in the intestine. The oncospheres invade the intestinal wall and migrate to cardiac and striated muscles, then to the brain and conjunctiva where they develop into cysticerci. When T. solium cysts localize in muscles, they result into myositis whereas in the central nervous system (CNS) they cause NCC. The cyst can also settle in the conjunctiva where they cause ophthalmic cysticercosis whereas, if they localise under the skin, they lead to dermatitis.

TSC is characterized by a fluid-filled bladder that is 0.5 cm to 1.5 cm in length with an invaginated scolex [21]. The severity of TSC in human depends on location of larvae, size and number in tissues, as well as the host immune response [22]. In symptomatic cases, NCC may be accompanied by headaches, dizziness and occasional seizures and dementia or hypertension in more severe cases [23]. Other NCC symptoms include sensory deficits, involuntary movements and brain system dysfunction. Taenia solium cysticerci in human inhibit humoral and cellular immune responses as well as inflammatory reaction and cytokines, particularly IFN-γ and IL-2, and to a lesser degree IL-4 production [22] [24]. Live metacestodes also secrete cysteine and serine proteases that deplete CD4+ cells (T helper cells) that send signals to other types of immune cells, including CD8 killer cells that destroy and kill the infection. The elucidation of these molecules provides insights into the mechanisms by which T. solium metacestodes evade host immunological attack and are able to survive long periods of time [22]. Nevertheless, even if one develops neurological symptoms in early stages, it is difficult to link it with human cysticercosis.

3. Diagnostic Methods and Impact on Epidemiology

PCC can be diagnosed by ante-mortem through lingual palpation, conjunctival examination, postmortem examination, serological and or immunological tests [25]. In postmortem examination, cysticerci can be obtained from striated and cardiac muscles [26]. The masseter, ham-spring, lingual and cardiac muscles are the most preferred predilection sites for cysticerci. However, cystation in the brain has also been observed (Figure 1). While pigs can be infected with both T. hydatigena and T. solium, the Ag ELISA does not differentiate between the two species [27].

On the other hand, detection of the disease in human can rely on identification of T. solium proglottids or eggs in human faeces. The techniques have both

(a) (b) (c)

Figure 1. (a) Cysts in the pig cardiac muscle; (b) in the brain of an 8-month-old pig and (c) in the abdominal muscles of a pig [30].

low sensitivity and specificity though it is regarded as confirmatory of infection by the adult stage of the parasite [28]. Deoxyribonucleic acid (DNA) based technologies are sensitive and specific [29] , but their use is not common. On the other hand, the diagnosis of HCC can be achieved through enzyme-linked immunosorbent assay (ELISA), Cysticercus IgG Western Blot Assay, computed tomography (CT) scan and magnetic resonance imaging (MRI). CT scan and MRI are highly efficient, however, they are very expensive and not available or inaccessible in most endemic areas where accurate serological tests become indispensable [30] [31] [32]. Also, the tools are few and so spread far apart in a country with few experts, and that people have to travel long distances to get help thus increasing expenses even if medication is free. But also that they are old models, at the end of their life span, are frequently broken taking months or years to get repaired. Thus increasing the expenses for the people who visit hospitals for a scan but only to be told that the machine is out of order, you have to wait for some months, and come again; Reason: expertise for repair is not resident in endemic developing countries but overseas; so it takes time to bring them to the developing world.

The review was based on peer-reviewed studies of TSC from sub saharan Africa from 1960 to 2018; TSC epidemiological reports and theses limited to sub Saharan Africa and; the World Health Organisation (WHO) and the Organisation for Animal Health (OIE) reports. Literature search using advanced search engines such as Google Scholar (http://www.google.com), library catalogues and electronic databases. Some databases include PubMed (http://www.ncbi.nlm.nih.gov/pubmed/), Elsevier (https://www.journals.elsevier.com/the-lancet-infectious-diseases/), Veterinary Parasitology (http://www.sciencedirect.com/science/journal/). Also health related journals websites such as https://www.hindawi.com/, and http://www.sciencedirect.com/science/journal/ were used for this review. The key words are “Taenia solium cysticercosis”, “human cysticercosis”, “neurocysticercosis”, “porcine cysticercosis”, “epidemiology”, “risk factors”, “diagnosis”, and “control”. The search was restricted to research articles, reports, academic outputs such as dissertations and theses in English language from sub Saharan African countries. The search style adopted and modified from that of Shonyela et al. [33] as follows: TSC OR Human cysticercosis OR Neurocysticercosis OR Porcine cysticercosis (OR Risk factors of …* OR Diagnosis of …* OR Epidemiology of …* OR Control of …*) AND (Angola OR Benin OR Botswana OR Burkina Faso OR Burundi OR Cameroon OR Central African Republic OR Chad OR Congo OR Zaire OR Cote d’Ivoire OR Ivory Coast OR Djibouti OR Egypt OR Equatorial Guinea OR Eritrea OR Ethiopia OR Gabon OR Gambia OR Ghana OR Guinea OR Guinea-Bissau OR Kenya OR Lesotho OR Liberia OR Libya OR Madagascar OR Malawi OR Mali OR Mauritania OR Morocco OR Mozambique OR Namibia OR Niger OR Nigeria OR Rwanda OR Senegal OR Sierra Leone OR Somalia OR South Africa OR South Sudan OR Sudan OR Swaziland OR Tanzania OR Togo OR Tunisia OR Uganda OR Zambia OR Zimbabwe). Prevalences and diagnostic techniques were key to maping the extent of TSC across sub Saharan Africa. In addition, references found in suitable articles were also investigated to compile all known studies on the presence of TSC (Table 1).

Table 1. Prevalence of TSC in sub Saharan Africa.

5. Transmission Life Cycle of Teania solium

In humans, adult tapeworms grow sexually and release mature proglottids containing between 30,000 to 50,000 eggs [107]. Proglottids shed in human feaces become the ultimate source of infections to both humans (definitive host) and pigs (intermediate host). Pigs become infected by ingesting T. solium eggs or gravid proglottids contaminated in water and or food items. Ingested eggs hatch into oncospheres that invade the intestinal wall, migrating via blood circulatory system and lymphatic system to striated muscles, brain, liver and other tissues where they develop to form cysticerci. Cysticerci can be transmitted to human through consuming raw or undercooked pork infected with cysticerci. However humans can serve as accidental intermediate hosts through ingestion of contaminated water and food containing T. solium eggs or gravid proglottids. When the cysticerci infect Human Central Nervous System (CNS) may cause neurocysticercosis [108].

6. Risk Factors for TSC

It is worth mentioning TSC as a disease of poverty whose persistence is exacerbated by ignorance. The disease is endemic in most resource-poor countries where sanitation is inadequate and free-range pig farming is practiced [108]. However, as a result of migrations, tourism and globalisation, TSC has been reported in industrialised countries [3] [4] where sanitation is adequate. Also, there have been case reports of HCC among communities of Muslims [109] and Orthodox Jews [4] [110] that the risk of infection spares no world.

The risk factors which is associated by the transmission of TSC include indiscriminate defaecation and improper use of toilets; free-range system of keeping pigs; indiscriminate or unregulated slaughtering and inadequate meat hygiene and inspection; consumption of undercooked and porcine cysticerci infected pork; social structure and roles; and proximity of a tapeworm carrier [111] [112] [113] [114] [115]. The immanent social cultural settings and lifestyles of the communities in endemic areas form the main concern on the epidemiology of the disease.

7. Control Strategies and Challenges

Pig keeping and pork consumption are primarily increasing due to increased meat protein (pork) demand in urban [116] and rural areas. Unfortunately, due to ignorance, inadequate sanitation, poor personal hygine, poor pig management practices and lack or absence of meat hygiene, cysticercosis remains an important constraint for public health, nutrition and economic well being of the predisposed communities [116]. While the life cycle of cysticercosis cannot be maintained in areas that have adequate sanitation, personal hygiene and good animal husbandry practices, thus, social cultural settings, poverty and ignorance would form a barrier in eradicating this easily preventable disease.

If people would know how diseases are transmitted and how to improve their hygiene and sanitary behaviour, it would have an important impact on minimizing the risk factors. A knowledgeable public as an early warning system reporting cases in humans and pigs would play a key role in managing the existing risks of importing/exporting T. solium. The route can be through tourism, migration of tapeworm carriers or indirectly through transportation of infected pigs, or pig meat to urban settings. Because of the complex nature of TSC epidemiology, its control requires a multidisciplinary and multilevel approach [117].

Theoretically and scientifically points of view, interruption of the transmission of TSC looks very easy. Because one would simply prevent pigs from consuming human faeces; treat human carriers to break cycle of the adult forms of the parasite; prevent humans from consuming infected pork or autoinfection. The umbrella behind all these falls under sanitation which is the key point to stop TSC transmission from human to pigs by providing latrines and clean water to prevent open defecation; ensuring hygienic animal husbandry practices; stop transmission from pigs back to humans through veterinary sanitary measures such as regulation of meat inspection practices and not eating raw pork [118].

However, in practice, it has been difficult to achieve these control measures. Some of the difficulties that contribute to the extent that eradication of TSC still being a long way might be limitations on facilities required for diagnosis; the unnoticed long-life of the parasite in the human body and low public awareness on the transmission drivers for the disease [119].

8. Conclusions

The volume of studies on TSC in sub-Saharan Africa has been encouraging that one might think efforts towards eradication of the disease are fruitful. A significant number of the research is the front line which rarely finds its way into applications. Bridge cutting-edge science and application, in an area of huge societal and economic impact, TSC control is imperatively important. This is because over decades today, the high prevalence of human (neuro) cysticercosis and the accompanied epilepsy cases are increasingly observed even in areas of the world which TSC disease was considered history; PCC is now observed in areas which were considered free from the disease; diagnosis challenges and; globalisation. The solution towards breaking and therefore eradicating the TSC transmission cycle must be a bottom-up and community-based control (CBC) programme which would critically address the concept of “One Health”.

Sincerely, transmission of TSC is favoured by poor sanitation. What is perhaps missing is the knowledge on “why is the communities involved ease indiscriminately while almost every household in endemic areas owns toilet? What social drivers are behind this motive (bush defecation)? How best can the disease be controlled and monitored? Developing and implementing an interdisciplinary CBC and monitoring (surveillance) programme are standpoints towards eliminating TSC in sub Saharan Africa and the rest endemic regions.

Conflicts of Interest

The authors declare no conflicts of interest regarding the publication of this paper.

Cite this paper

Mwang’onde, B. (2019) Taenia solium Cysticercosis in Sub-Saharan Africa: Perspectives for a Better Control. Advances in Infectious Diseases, 9, 105-121. doi: 10.4236/aid.2019.92008.

References

[1] Johansen, M., Trevisan, C., Lauritsen, S., Ertel, R., Magnussen, P. and Braae, U. (2017) The Vicious Worm: An Electronic Health Education Tool—Assessed in Tanzania.
[2] Mwang’onde, B.J., Mwita, J.C. and Gamba, N. (2018) The Status and Health Burden of Neurocysticercosis in Mbulu District, Northern Tanzania. BMC Research Notes, 11, 1-5.
https://doi.org/10.1186/s13104-018-3999-9
[3] Canas, N.M., Calado, S.L. and Vale, J. (2005) Treatment of Racemose Neurocysticercosis of the Spine. Revue Neurologique (Paris), 40, 544-547.
https://doi.org/10.33588/rn.4009.2003286
[4] Schantz, P.M., Wilkins, P.P. and Tsang, V.C.W. (1998) Immigrants, Imaging, and Immunoblots: The Emergence of Neurocysticercosis as a Significant Public Health Problem. In: Shield, W.M., Craig, W.A. and Hughes, J.M., Eds., Emerging Infections, ASM Press, Washington DC, 213-242.
https://doi.org/10.1128/9781555816957.ch12
[5] WHO (2010) First WHO Report on Neglected Tropical Diseases: Working to Overcome the Global Impact of Neglected Tropical Diseases. Geneva.
[6] Havelaar, A.H., Kirk, M.D., Torgerson, P.R., Gibb, H.J., Hald, T., Lake, R.J., Praet, N., Bellinger, D.C. and De Silva, N.R. (2015) World Health Organization Global Estimates and Regional Comparisons of the Burden of Foodborne Disease in 2010. PLOS Medicine, 12, e1001923.
https://doi.org/10.1371/journal.pmed.1001923
[7] Torgerson, P.R., Devleesschauwer, B., Praet, N., Speybroeck, N., Willingham, A.L., Kasuga, F., Rokni, M.B., Zhou, X.-N., Fèvre, E.M., Sripa, B., Gargouri, N., Fürst, T., Budke, C.M., Carabin, H., Kirk, M.D., Angulo, F.J., Havelaar, A. and de Silva, N. (2015) World Health Organization Estimates of the Global and Regional Disease Burden of 11 Foodborne Parasitic Diseases, 2010: A Data Synthesis. PLOS Medicine, 12, e1001920.
https://doi.org/10.1371/journal.pmed.1001920
[8] WHO (2018) Taeniasis/Cysticercosis.
https://www.who.int/news-room/fact-sheets/detail/taeniasis-cysticercosis
[9] Singhi, P. (2011) Neurocysticercosis. Therapeutic Advances in Neurological Disorders, 4, 67-81.
https://doi.org/10.1177/1756285610395654
[10] Winkler, A.S., Mosser, P. and Schmutzhard, E. (2009) Neurological Disorders in Rural Africa: A Systematic Approach. Tropical Doctor, 39, 102-104.
https://doi.org/10.1258/td.2008.080144
[11] Elisa, C.J.S., Edgar, P.C.D., Braulio, M.B., Marıa, A.O.Y. and Marıa, A.G.C. (2017) Neurocysticercosis a Public Health Problem. Clinical Case Reports, 5, 543-544.
[12] Barcelos, I.S., Souza, M.A., Pena, J.D.O., Machado, G.A., de Moura, L.G.M. and Costa-Cruz, J.M. (2012) Genetic Polymorphism in Taenia solium Metacestodes from Different Brazilian Geographic Areas. Memórias do Instituto Oswaldo Cruz, 107, 24-30.
https://doi.org/10.1590/S0074-02762012000100004
[13] WHO (2014) World Health Statistics. Geneva, 27.
http://www.who.int
[14] García, H.H., Evans, C.A.W., Nash, T.E., Takayanagui, O.M., Botero, D., et al. (2002) Current Consensus Guidelines for Treatment of Neurocysticercosis Current Consensus Guidelines for Treatment of Neurocysticercosis. Clinical Microbiology Reviews, 15, 747-754.
https://doi.org/10.1128/CMR.15.4.747-756.2002
[15] Assane, Y.A., Trevisan, C., Schutte, C.M., Noormahomed, E.V., Johansen, M.V. and Magnussen, P. (2017) Neurocysticercosis in a Rural Population with Extensive Pig Production in Angonia District, Tete Province, Mozambique. Acta Tropica, 165, 155-160.
https://doi.org/10.1016/j.actatropica.2015.10.018
[16] WHO (2011) Report of the WHO Expert Consultation on Foodborne Trematode Infections & Taeniasis/Cysticercosis. Vientiane.
[17] Tsang, V.C.W. and Wilson, M. (1995) Taenia solium Cysticercosis: An Under-Recognized But Serious Public Health Problem. Parasitology Today, 11, 124-126.
https://doi.org/10.1016/0169-4758(95)80175-8
[18] Del Brutto, O.H., Sotelo, J. and Roman, G. (1998) Neurocysticercosis: A Clinical Handbook. Swets and Zeitlinger, Lisse, 216 p.
[19] Ukoli, F.M.A. (1990) Introduction of Parasitology in Tropical Africa. John Wiley and Sons Ltd., Chichester.
[20] Sharma, R., Bargotra, R., Tandon, V.R., Gupta, S.K. and Verma, S.S.J. (2005) Neurocysticercosis: Current Vitae. J&K Scientific, 7, 1-3.
[21] Rabiela, M.T., Rivas, A. and Flisser, A. (1989) Morphological Types of Taenia solium Cysticerci. Parasitology Today, 5, 357-359.
https://doi.org/10.1016/0169-4758(89)90111-7
[22] Molinari, J.L. and Tato, P. (2002) Molecular Determinants of Host-Parasite Interactions: Focus on Parasite. In: Singh, G. and Prabhakar, S., Eds., Taenia solium Cysticercosis from Basic to Clinical Science, CAB International, Wallingford, 25-33.
https://doi.org/10.1079/9780851996288.0025
[23] Clinton, W. and Weller, P.F. (2005) Cestodes. Taenia solium and Cysticercosis. In: Kasper, D.L. and Harrison, T.R., Eds., Harrison’s Principles of Internal Medicine, 16th Edition, McGraw-Hill, New York, 1273-1276.
[24] Flisser, A. and Correa, D.E.C. (2002) Taenia solium Cysticercosis: New and Revisited Immunological Aspects. In: Singh, G. and Prabhakar, S., Eds., Taenia solium Cysticercosis from Basic to Clinical Science, CAB International, Wallingford, 15-24.
https://doi.org/10.1079/9780851996288.0015
[25] Joshi, D.D., Bista, P.R., Ito, A. and Yamasaki, H. (2007) Present Situation of Porcine Taeniasis and Human Cysticercosis in Nepal. Review of Cysticercosis in Nepal, 38, 144-150.
[26] Rana, H.B. and Dhakal, I.P. (2006) Incidence of Cysticercosis in Buffaloes and Swine in Chitwan Valley, Nepal. Proceedings of Present Situation Challenges in Treatment and Elimination of Taeniasis/Cysticercosis in Nepal, Kathmandu, 7-9 December 2005, 145-147.
[27] Deckers, N., Saerens, D., Kanobana, K., Conrath, K., Victor, B., Wernery, U., et al. (2009) Nanobodies, a Promising Tool for Species-Specific Diagnosis of Taenia solium Cysticercosis. International Journal for Parasitology, 39, 625-633.
https://doi.org/10.1016/j.ijpara.2008.10.012
[28] Allan, J.C., Wilkins, P.P., Tsang, V.C.W. and Craig, P.S. (2003) Immunodiagnostic Tools for Taeniasis. Acta Tropica, 87, 87-93.
https://doi.org/10.1016/S0001-706X(03)00059-7
[29] Gonzalez, L.M., Montero, E., Puente, S., Lopez-Velez, R., Hernandez, M., Sciutto, E., et al. (2002) PCR Tools for the Differential Diagnosis of Taenia saginata and Taenia solium Taeniasis/Cysticercosis from Different Geographical Locations. Diagnostic Microbiology and Infectious Disease, 42, 243-249.
https://doi.org/10.1016/S0732-8893(01)00356-X
[30] Mwang’onde, B.J. (2014) Epidemiology and Burden of Human Cysticercosis in Mbulu District, Tanzania. University of Dar es Salaam, Dar es Salaam.
[31] Feldman, M., Plancarte, A., Sandoval, M., Wilson, M. and Flisser, A. (1990) Comparison of Two Assays (EIA and EITB) and Two Samples (Saliva and Serum) for the Diagnosis of Neurocysticercosis. Transactions of the Royal Society of Tropical Medicine and Hygiene, 84, 559-562.
https://doi.org/10.1016/0035-9203(90)90040-L
[32] Gottstein, B., Zini, D. and Schantz, P.M. (1987) Species-Specific Immunodiagnosis of Taenia solium Cysticercosis by ELISA and Immunoblotting. Tropical Medicine and Parasitology, 38, 299-303.
[33] Shonyela, S., Yang, G. and Wang, C. (2018) Current Status of Prevalence, Possible Control and Risk Factors Associated with Porcine Cysticercosis from Endemic Countries in Africa. World Journal of Vaccines, 8, 53-80.
https://doi.org/10.4236/wjv.2018.83006
[34] Kama, K.L. (1998) Pigs and Cattle Cysticercosis in Southern Angola. 9th International Conference of Association of Institutions of Tropical Veterinary Medicine, Harare, 14-18 September 1998.
[35] Zoli, A., Shey-Njila, O., Assana, E., Nguekam, J.P., Dorny, P., Brandt, J., et al. (2003) Regional Status, Epidemiology and Impact of Taenia solium Cysticercosis in Western and Central Africa. Acta Tropica, 87, 35-42.
https://doi.org/10.1016/S0001-706X(03)00053-6
[36] Goussanou, J.S.E., Kpodekon, T.M., Saegerman, C., Azagoun, E., Youssao, I., Farougou, S., et al. (2013) Spatial Distribution and Risks Factors of Porcine Cysticercosis in Southern Benin Based Meat Inspection Records. International Research Journal of Microbiology, 4, 188-196.
[37] Houinato, D., Ramanankandrasama, B., Adjide, C., Melaku, Z., Josse, R., Avode, G., Duma, M. and Bouteille, B. (1998) Seroprevalence of Cysticercosis in Benin. Transactions of the Royal Society of Tropical Medicine and Hygiene, 92, 621-624.
https://doi.org/10.1016/S0035-9203(98)90785-4
[38] Coulibaly, N.D. and Yameogo, K.R. (2000) Prevalence and Control of Zoonotic Diseases: Collaboration between Public Health Workers and Veterinarians in Burkina Faso. Acta Tropica, 76, 53-57.
https://doi.org/10.1016/S0001-706X(00)00090-5
[39] Dorny, P., Kabwe, C., Kirezi, K., Lukanu, K., Lutumba, P., Maketa, V., Matondo, P., Polman, K., Praet, N., Speybroeck, N., et al. (2012) Cysticercosis in the Democratic Republic of Congo. Onderstepoort Journal of Veterinary Research, 79, a485.
https://doi.org/10.4102/ojvr.v79i2.485
[40] Mwape, K.E., Phiri, I.K., Praet, N., Speybroeck, N., Muma, J.B., et al. (2013) The Incidence of Human Cysticercosis in a Rural Community of Eastern Zambia. PLOS Neglected Tropical Diseases, 7, e2142.
https://doi.org/10.1371/journal.pntd.0002142
[41] Ganaba, R., Praet, N., Carabin, H., Millogo, A., Tarnagda, Z., Dorny, P., et al. (2011) Factors Associated with the Prevalence of Circulating Antigens to Porcine Cysticercosis in Three Villages of Burkina Faso. PLOS Neglected Tropical Diseases, 5, e927.
https://doi.org/10.1371/journal.pntd.0000927
[42] Carabin, H., Millogo, A., Cissé, A., Gabriël, S., Sahlu, I., Dorny, P., et al. (2015) Prevalence of and Factors Associated with Human Cysticercosis in 60 Villages in Three Provinces of Burkina Fas. PLOS Neglected Tropical Diseases, 9, e0004248.
https://doi.org/10.1371/journal.pntd.0004248
[43] Praet, N., Kanobana, K., Kabwe, C., Maketa, V., Lukanu, P., Lutumba, P., Polman, K., Matondo, P., Speybroeck, N., Dorny, P. and Sumbu, J. (2010) Taenia solium Cysticercosis in the Democratic Republic of Congo: How Does Pork Trade Affect the Transmission of the Parasite? PLOS Neglected Tropical Diseases, 4, e817.
https://doi.org/10.1371/journal.pntd.0000817
[44] Newell, E., Vyungimana, F., Geerts, S. and Van Kerckhoven, I.T.V. (1997) Prevalence of Cysticercosis in Epileptics and Members of Their Families in Burundi. Transactions of the Royal Society of Tropical Medicine and Hygiene, 91, 389-391.
https://doi.org/10.1016/S0035-9203(97)90251-0
[45] Ngowi, H.A., Phiri, I.K., Afonso, S. and Mukaratirwa, S. (2004) Taenia solium Cysticercosis in Eastern and Southern Africa: An Emerging Problem in Agriculture and Public Health. The Southeast Asian Journal of Tropical Medicine and Public Health, 35, 266-270.
[46] Al-D, C.M. (1999) Onchocerciasis and Epilepsy: A Matched Case-Control Study in the Central African Republic. American Journal of Epidemiology, 149, 565-570.
https://doi.org/10.1093/oxfordjournals.aje.a009853
[47] Assana, E., Zoli, P.A., Sadou, H.A., Nguekam, Voundou, L., Pouedet, M.S.R., Dorny, P., Brandt, J. and Geerts, S. (2001) Prevalence of Porcine Cysticercosis in Mayo-Danay (North Cameroon) and Mayo-Kebbi (South-West Chad). Revue d’élevage et de médecine vétérinaire des pays tropicaux, 54, 123-127.
https://doi.org/10.19182/remvt.9790
[48] Nguekam, J.P., Zoli, A.P., Zogo, P.O., Kamga, A.C., Speybroeck, N., Dorny, P., Brandt, J. and Losson, B.G.S. (2003) A Seroepidemiological Study of Human Cysticercosis in West Cameroon. Tropical Medicine & International Health, 8, 144-149.
https://doi.org/10.1046/j.1365-3156.2003.01000.x
[49] Dorny, P., Brandt, J., Zoli, A. and Geerts, S. (2003) Immunodiagnostic Tools for Human and Porcine Cysticercosis. Acta Tropica, 87, 79-86.
https://doi.org/10.1016/S0001-706X(03)00058-5
[50] Mishra, G.S. (1978) Cysticerci of Animals Slaughtered at the Abattoir of Port-Bouet (Abidjan), (Ivory Coast). Review of Veterinary Medicine of Tropics, 31, 331-346.
https://doi.org/10.19182/remvt.8114
[51] Danho, T. (1991) Muscular Cysticercosis and Trichinellosis of Pork: A Special Case of Côte d’Ivoire. Veterinary Medicine. National Veterinary School of Lyon, Lyon.
[52] Fain, A. (1997) Human Helminthic Infections. In: Janssens, P.G., Kivits, M., Vuylsteke, J., Eds., Health in Central Africa since 1885 Past, Present and Future, King Baudouin Foundation, Brussels, 485-500.
[53] Melki, J., Koffi, E., Boka, M., Touré, A., Soumahoro, M.-K. and Jambou, R. (2018) Taenia Solium Cysticercosis in West Africa: Status Update. Parasite, 25, 49.
https://doi.org/10.1051/parasite/2018048
[54] Secka, A., Marcotty, T., Deken, R.D., Marck, E.V. and Geerts, S. (2010) Porcine Cysticercosis and Risk Factors in the Gambia and Senegal. Journal of Parasitology Research, 2010, Article ID: 823892.
https://doi.org/10.1155/2010/823892
[55] Permin, A., Yelifari, L., Bloch, S.P., Hansen, N.P. and Nansen, P. (1999) Parasites in Cross-Bred Pigs in the Upper East Region of Ghana. Veterinary Parasitology, 87, 63-71.
https://doi.org/10.1016/S0304-4017(99)00159-4
[56] Langbong, B., Amos, K.L. and Francis, A. (2012) Prevalence and Risk Factors of Taeniasis in the Bunkpurugu-Yunyoo District of Northern Ghana. Journal of Bacteriology and Parasitology, 3, 129.
[57] Melki, J., Koffi, E., Boka, M., Touré, A., Soumahoro, M. and Jambou, R. (2018) Taenia solium Cysticercosis in West Africa: Status Update. Parasite, 25, 49.
https://doi.org/10.1051/parasite/2018048
http://www.parasite-journal.org%0AOPEN
[58] Odamtten, S. and Laing, W.M. (1967) Cysticercosis of the Brain. Ghana Medical Journal, 6, 97-105.
[59] Phiri, I.K., Ngowi, H., Afonso, S. and Matenga, E. (2003) The Emergence of Taenia solium Cysticercosis in Eastern and Southern Africa as a Serious Agricultural Problem and Public Health Risk. Acta Tropica, 87, 13-23.
https://doi.org/10.1016/S0001-706X(03)00051-2
[60] Eshitera, E.E., Githigia, S.M., Kitala, P., Thomas, L.F., Fèvre, E.M. and Harrison, L.J.S. (2012) Prevalence of Porcine Cysticercosis and Associated Risk Factors in Homa Bay District, Kenya. BMC Veterinary Research, 8, 234.
https://doi.org/10.1186/1746-6148-8-234
[61] Mafojane, N.A., Appleton, C.C., Krecek, R.C., Michael, L.M. and Willingham, A. (2003) The Current Status of Neurocysticercosis in Eastern and Southern Africa. Acta Tropica, 87, 25-33.
https://doi.org/10.1016/S0001-706X(03)00052-4
[62] Githigia, S., Murekefu, A. and Otieno, R. (2005) Prevalence of Porcine Cysticercosis and Risk Factors for Taenia solium Taeniosis in Funyula Division of Busia District, Kenya. Kenya Veterinarian, 29, 37-39.
[63] Mutua, F.K., Randolph, T.F., Arimi, S.M., Kitala, P.M., Githigia, S.M., Willingham, A.L., et al. (2007) Palpable Lingual Cysts, a Possible Indicator of Porcine Cysticercosis, in Teso District, Western Kenya. Journal of Swine Health and Production, 15, 206.
[64] Kagira, J.M., Maingi, N., Kanyari, P.W.N., Githigia, S.M., Ng’ang’a, J.C. and Gachohi, J. (2010) Seroprevalence of Cysticercus Cellulosae and Associated Risk Factors in Free-Range Pigs in Kenya. Journal of Helminthology, 84, 398-403.
https://doi.org/10.1017/S0022149X10000076
[65] Thomas, L.F., Jayne, L., Harrison, S., Toye, P., Glanville, W.A., Anne, E., et al. (2016) Prevalence of Taenia solium Cysticercosis in Pigs Entering the Food Chain in Western Kenya. Tropical Animal Health and Production, 48, 233-238.
https://doi.org/10.1007/s11250-015-0949-6
[66] Thomas, L. (2014) Epidemiology of Taenia solium Cysticercosis in Western Kenya.
https://www.researchgate.net/publication/292449970_Epidemiology_of_Taenia_solium_
Cysticercosis_in_western_Kenya
[67] Waruingi, M., Ramanankandrasana, B., Druet-Cabanac, M., Nsengiyumva, G., Bouteille, B. and Preux, P.M. (2002) Kenya: A New Human Cysticercosis Focus (Letter). African Journal of Neurological Sciences, 21, 46.
[68] Porphyre, V., Rasamoelina-andriamanivo, H. amd Rakotoarimanana, A. (2015) Spatio-Temporal Prevalence of Porcine Cysticercosis in Madagascar Based on Meat Inspection. Parasites & Vectors, 8, 391.
https://doi.org/10.1186/s13071-015-0975-2
[69] Yanagida, T., Carod, J.-F., Sako, Y., Nakao, M., Hoberg, E.P. and Ito, A. (2014) Genetics of the Pig Tapeworm in Madagascar Reveal a History of Human Dispersal and Colonization. PLoS ONE, 9, e109002.
https://doi.org/10.1371/journal.pone.0109002
[70] WHO (2014) Taeniasis and Cysticercosis in Madagascar: WHO Informal Consultation on Assembling a Framework for Control/Elimination of Taenia solium and Neurocysticercosis. Generva.
[71] Pondja, A., Neves, L., Mlangwa, J., Afonso, S., Fafetine, J., Willingham, A.L., Thamsborg, S.M. and Johansen, M.V. (2010) Prevalence and Risk Factors of Porcine Cysticercosis in Angónia District, Mozambique. PLOS Neglected Tropical Diseases, 4, e594.
https://doi.org/10.1371/journal.pntd.0000594
[72] Pondja, A., Neves, L., Mlangwa, J., Afonso, S., Fafetine, J., Willingham, A.L., Thamsborg, S.M. and Johansen, M.V. (2015) Incidence of Porcine Cysticercosis in Angónia District, Mozambique. Preventive Veterinary Medicine, 118, 493-497.
https://doi.org/10.1016/j.prevetmed.2015.01.001
[73] Innocent, S.L., Ngalyuka, P.K., Celia, M., et al. (2014) Prevalence of Neurocystsicercosis and Associated Factors among People with New Onset Seizures in Northern Namibia. Intermediate Hospital, Oshakati.
[74] Kalu, Njoga, U.J., Eze, I. and Iheagwam, C.N. (2017) Re-Evaluation of Porcine Cysticercosis in Nsukka Area of Enugu State, Nigeria. Asian Pacific Journal of Tropical Disease, 7, 519-522.
http://www.apjtcm.com
https://doi.org/10.12980/apjtd.7.2017D7-7
[75] Karshima, N.S., Udokainyang, A.D. and Salihu, A.A. (2013) Taenia solium Cysticercosis in Pigs Slaughtered in IBI Local Government Area of Taraba State, Nigeria.
[76] Biu, A. and Ijudai, J. (2012) Prevalence and Morphometric Studies on Porcine Cysticercosis in Adamawa State, Nigeria. Sokoto Journal of Veterinary Sciences, 10, 28-31.
[77] Chiejina, D.N. and Onah, S. (1995) Taenia solium Cysticercosis and Human Taeniasis in the Nsukka Area of Enugu State, Nigeria. Annals of Tropical Medicine and Parasitology, 89, 399-407.
https://doi.org/10.1080/00034983.1995.11812968
[78] Edia-Asuke, A.U., Inabo, H.I., Mukaratirwa, S., Umoh, V.J., Whong, C.M., Asuke, S. and Ella, E. (2015) Seroprevalence of Human Cysticercosis and Its Associated Risk Factors among Humans in Areas of Kaduna Metropolis, Nigeria. The Journal of Infection in Developing Countries, 9, 799-805.
https://doi.org/10.3855/jidc.5415
[79] Rebecca, W.P., Eugene, I.I. and Joshua, K. (2013) Seroprevalence of Antibodies (IgG) to Taenia solium among Pig Rearers and Associated Risk Factors in Jos Metropolis, Nigeria. The Journal of Infection in Developing Countries, 7, 67-72.
https://doi.org/10.3855/jidc.2309
[80] Tugirimana, P., Du, U.E., Sattler, J., Rottbeck, R., Fide, J., Hategekimana, C., et al. (2013) High Prevalence of Cysticercosis in People with Epilepsy in Southern Rwanda. PLOS Neglected Tropical Diseases, 7, e2558.
https://doi.org/10.1371/journal.pntd.0002558
[81] Rottbeck, R., Nshimiyimana, J.F., Tugirimana, P., Düll, U.E., Sattler, J., Hategekimana, J.C., et al. (2013) High Prevalence of Cysticercosis in People with Epilepsy in Southern Rwanda. PLOS Neglected Tropical Diseases, 7, e2558.
https://doi.org/10.1371/journal.pntd.0002558
[82] Secka, A., Grimm, F., Marcotty, T., Geysen, D., Niang, A.M., Ngale, V., et al. (2011) Old Focus of Cysticercosis in a Senegalese Village Revisited after Half a Century. Acta Tropica, 119, 199-202.
https://doi.org/10.1016/j.actatropica.2011.05.003
[83] Coral-almeida, M., Gabriël, S., Abatih, E.N. and Praet, N. (2015) Taenia solium Human Cysticercosis: A Systematic Review of Sero-Epidemological Data from Endemic Zones around the World. PLOS Neglected Tropical Diseases, 9, e0003919.
https://doi.org/10.1371/journal.pntd.0003919
[84] Madzimure, J., Chimonyo, M., Zander, K.K. and Dzama, K. (2013) Potential for Using Indigenous Pigs in Subsistence-Oriented and Market-Oriented Small-Scale Farming Systems of Southern Africa. Tropical Animal Health and Production, 45, 135-142.
https://doi.org/10.1007/s11250-012-0184-3
[85] Sibongiseni, T.G., James, W.O. and Mary, M.M. (2016) Pig Farming in Rural South Africa: A Case Study of Uthukela District in Kwa Zulu-Natal. Indian Journal of Animal Research, 50, 614-620.
https://doi.org/10.18805/ijar.11175
[86] Krecek, R.C., Mohammed, H., Michael, L.M., Schantz, P.M., Ntanjana, L., Morey, L., Were, S.R. and Willingham III, A.L. (2012) Risk Factors of Porcine Cysticercosis in the Eastern Cape Province, South Africa. PLoS ONE, 7, e37718.
https://doi.org/10.1371/journal.pone.0037718
[87] Krecek, R., Michael, L., Schantz, P., Ntanjana, L., Smith, M.F., et al. (2011) Corrigendum to Prevalence of Taenia solium Cysticercosis in Swine from a Community-Based Study in 21 Villages of the Eastern Cape Province, South Africa. Veterinary Parasitology, 183, 198-200.
https://doi.org/10.1016/j.vetpar.2011.09.033
[88] Foyaca-Sibat, H., Cowan, L.D., Carabin, H., Targonska, I., Anwary, M.A., Serrano-Ocana, G., et al. (2009) Accuracy of Serological Testing for the Diagnosis of Prevalent Neurocysticercosis in Outpatients with Epilepsy, Eastern Cape Province, South Africa. PLOS Neglected Tropical Diseases, 3, e562.
https://doi.org/10.1371/journal.pntd.0000562
[89] Braae, U.C., Magnussen, P., Lekule, F., Harrison, W. and Johansen, M.V. (2014) Temporal Fluctuations in the Sero-Prevalence of Taenia solium Cysticercosis in Pigs in Mbeya Region, Tanzania. Parasites & Vectors, 7, 574.
http://www.parasitesandvectors.com/content/7/1/574%0ARESEARCH
https://doi.org/10.1186/PREACCEPT-6800620291397582
[90] Yohana, C., Mwita, C. and Nkwengulila, G. (2013) The Prevalence of Porcine Cysticercosis and Risk Factors for Taeniasis in Iringa Rural District. International Journal of Animal and Veterinary Advances, 5, 251-255.
[91] Boa, M., Bøgh, H., Kassuku, A. and Nansen, P. (1995) The Prevalence of Taenia solium Metacestodes in Pigs in Northern Tanzania. Journal of Helminthology, 69, 113-117.
https://doi.org/10.1017/S0022149X00013997
[92] Kavishe, M.D.B., Mkupasi, E.M., Komba, E.V.G. and Ngowi, H. (2017) Prevalence and Risk Factors Associated with Porcine Cysticercosis Transmission in Babati District, Tanzania. Livestock Research for Rural Development, 29.
http://www.lrrd.org/lrrd29/1/kavi29016.html
[93] Maganira, J.D., Hepelwa, N.I. and Mwang’onde, B.J. (2018) Seroprevalence of Porcine Cysticercosis in Ludewa District, Njombe, Tanzania. Advances in Infectious Diseases, 8, 151-161.
https://doi.org/10.4236/aid.2018.83014
[94] Komba, E.V.G., Kimbi, E., Ngowi, H.A., Kimera, S.I., Mlangwa, J., Lekule, F., Sikasunge, C., Willingham, A.L., Johansen, M. and Thamsborg, S. (2013) Prevalence of Porcine Cysticercosis and Associated Risk Factors in Smallholder Pig Production Systems in Mbeya Region, Southern Highlands of Tanzania. Veterinary Parasitology, 198, 284-291.
https://doi.org/10.1016/j.vetpar.2013.09.020
[95] Shonyela, S., Mkupasi, E., Sikalizyo, C., Kabemba, E., Ngowi, H.A. and Phiri, I. (2017) An Epidemiological Survey of Porcine Cysticercosis in Nyasa District, Ruvuma Region, Tanzania. Parasite Epidemiology and Control, 2, 35-41.
https://doi.org/10.1016/j.parepi.2017.09.002
[96] Mwanjali, G., Kihamia, C., Kakoko, D.V.C., Lekule, F., Ngowi, H., Johansen, M.V., et al. (2013) Prevalence and Risk Factors Associated with Human Taenia solium Infections in Mbozi District, Mbeya Region, Tanzania. PLOS Neglected Tropical Diseases, 7, e2102.
https://doi.org/10.1371/journal.pntd.0002102
[97] Winkler, A.S., Willingham, A.L., Sikasunge, C.S. and Schmutzhard, E. (2009) Epilepsy and Neurocysticercosis in Sub-Saharan Africa. Wiener klinische Wochenschrift, 121, 3-12.
https://doi.org/10.1007/s00508-009-1242-3
[98] Dumas, M., Grunitzky, K., Dabis, F., Deniau, M., Bouteille, B., Belo, M., Pestre-Alexandre, M., Catanzano, G., Darda, M.L. and D’Almeida, M. (1989) Epidemiological Study of Neuro-Cysticercosis in Northern (West Africa). Acta Leidensia, 57, 191-196.
[99] Zirintunda, G. and Ekou, J. (2015) Occurrence of Porcine Cysticercosis in Free-Ranging Pigs Delivered to Slaughter Points in Arapai, Soroti District, Uganda. Onderstepoort Journal of Veterinary Research, 82, a888.
https://doi.org/10.4102/ojvr.v82i1.888
[100] Kungu, J.M., Dione, M.M., Ejobi, F., Harrison, L.J.S., Poole, E.J., Pezo, D. and Grace, D. (2017) Sero-Prevalence of Taenia spp. Cysticercosis in Rural and Urban Smallholder Pig Production Settings in Uganda. Acta Tropica, 165, 110-115.
https://doi.org/10.1016/j.actatropica.2016.01.016
[101] Waiswa, C., Fèvre, E.M., Nsadha, Z., Sikasunge, C.S. and Willingham III, A.L. (2009) Porcine Cysticercosis in Southeast Uganda: Seroprevalence in Kamuli and Kaliro Districts. Journal of Parasitology Research, 2009, Article ID: 375493.
https://doi.org/10.1155/2009/375493
[102] Nsadha, Z., Thomas, L.F., Févre, E.M., Nasinyama, G., Ojok, L. and Waiswa, C. (2014) Prevalence of Porcine Cysticercosis in the Lake Kyoga Basin, Uganda. BMC Veterinary Research, 10, 239.
https://doi.org/10.1186/s12917-014-0239-y
[103] Alarakol, S.P. (2017) Seroprevalence of Taenia solium Cysticercosis among People with Epilepsy Epileptic Patients in Three Rural Districts of Northern Uganda. Journal of Parasitology and Vector Biology, 9, 47-56.
http://www.academicjournals.org/JPVB
[104] Mwape, K.E., Phiri, I.K., Praet, N., Speybroeck, N., Muma, J.B., Dorny, P., et al. (2013) The Incidence of Human Cysticercosis in a Rural Community of Eastern Zambia. PLOS Neglected Tropical Diseases, 7, e2142.
https://doi.org/10.1371/journal.pntd.0002142
[105] Phiri, I.K., Dorny, P., Gabriel, S., Willingham, A.L., Speybroeck, N. and Vercruysse, J. (2002) The Prevalence of Porcine Cysticercosis in Eastern and Southern Provinces of Zambia. Veterinary Parasitology, 108, 31-39.
https://doi.org/10.1016/S0304-4017(02)00165-6
[106] Matenga, E. and Mukaratirwa, S. (2002) Prevalence of Porcine Cysticercosis and Hydatidosis in Slaughtered Animals in Southwestern Zimbabwe: A Retrospective Study. Proceedings of the 11th Annual Meeting of ENRECA Livestock Helminths Research Project in Eastern and Southern Africa, Lusaka, Zambia, 2002.
[107] Escobar, A. (1983) The Pathology of Neurocysticercosis. In: Palacios, E., Rodriquez-Carbajal, J., Taveras, J.M., Eds., Cysticercosis of the Central Nervous System, Charles C. Thomas, Springfield, 27-54.
[108] García, H.H., Gonzalez, A.E., Evans, C.A.W., Gilman, R.H. and Working, C. (2003) Taenia solium Cysticercosis. The Lancet, 361, 547-556.
https://doi.org/10.1016/S0140-6736(03)14117-7
[109] Shandera, W.X. and Kassy, J. (2006) Neurocysticercosis: Current Knowledge and Advances. Current Neurology and Neuroscience Reports, 6, 453-459.
https://doi.org/10.1007/s11910-006-0046-3
[110] Moore, A., Lutwick, L., Schantz, P., Pilcher, J., Wilson, M., Hightower, A., et al. (1995) Seroprevalence of Cysticercosis in an Orthodox Jewish Community. The American Journal of Tropical Medicine and Hygiene, 53, 439-442.
https://doi.org/10.4269/ajtmh.1995.53.439
[111] Mwang’onde, B.J., Nkwengulila, G. and Chacha, M. (2014) The Risk Factors for Human Cysticercosis in Mbulu District, Tanzania. Onderstepoort Journal of Veterinary Research, 81, a719.
http://ojvr.org/index.php/ojvr/article/view/719
https://doi.org/10.4102/ojvr.v81i2.719
[112] DeGiorgio, C.M., Medina, M.T., Duron, R., Zee, C. and Es-cueta, S. (2004) Neurocysticercosis. Epilepsy Currents, 4, 107-111.
https://doi.org/10.1111/j.1535-7597.2004.43008.x
[113] Nash, T.E., Singh, G., White, A.C., Rajshekhar, V., Loeb, J.A., Proaño, J.V., Takayanagui, O.M., Gonzalez, A.E., Butman, J.A., DeGiorgio, C., Del Brutto, O.H., Delgado-Escueta, A., Evans, C.A., Gilman, R.H., Martinez, S.M., Medina, M.T., Pretell, E.J., Teale, J. and Garc, H. (2006) Treatment of Neurocysticercosis: Current Status and Future Research Needs. Neurology, 67, 1120-1127.
https://doi.org/10.1212/01.wnl.0000238514.51747.3a
[114] Lescano, A.G., Garcia, H.H., Gilman, R.H., Gavidia, C.M., Tsang, V.C., Rodriguez, S., Moulton, L.H., Villaran, M.V., Montano, S.M. and Gonzalez, A. (2009) Taenia solium Cysticercosis Hotspots Surrounding Tapeworm Carriers: Clustering on Human Seroprevalence But Not on Seizures. Cysticercosis Working Group in Peru. PLOS Neglected Tropical Diseases, 3, e371.
https://doi.org/10.1371/journal.pntd.0000371
[115] Christina, M.C. and Herbert, B.T. (2009) Diagnosis and Treatment of Neurocysticercosis. Interdisciplinary Perspectives on Infectious Diseases, 2009, Article ID: 180742.
[116] Johansen, M.V. (2008) CWGESA Action Plan. Draft Action Plan for Prevention and Control of Taenia solium Cysticercosis/Taeniosis in Eastern and Southern African Region.
[117] Murrell, K.D. and Pawlowski, Z. (2006) Capacity Building for Surveillance and Control of Taenia Solium/Cysticercosis. AGRIS, 7, 37-45.
http://www.fao.org/3/a0083e/a0083e07.htm#TopOfPage
[118] Aung, A.K. and Spelman, D.W. (2016) Taenia solium Taeniasis and Cysticercosis in Southeast Asia. The American Journal of Tropical Medicine and Hygiene, 94, 947-954.
https://doi.org/10.4269/ajtmh.15-0684
[119] Nkwengulila, G. (2014) A Review of Human Cysticercosis and Diagnostic Challenges in Endemic Resource Poor Countries. Advances in Infectious Diseases, 4, 207-213.
http://www.scirp.org/journal/aid
https://doi.org/10.4236/aid.2014.44029

  
comments powered by Disqus

Copyright © 2019 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.