Author(s)

Harry Hariharan, Erica Brathwaite-Sylvester, Vanessa Matthew Belmar, Ravindra Sharma^*

Department of Pathobiology, School of Veterinary Medicine, St. George’s University, St. George, Grenada.

Of 52 culture positive urine samples from dogs in Grenada for six years (2004 through 2009) 65.5% of isolates were Gram-negative bacteria, with E. coli as the predominant species, followed by Proteus mirabilis, and Pseudomonas aeruginosa. Other Gram-negative isolates included Klebsiella pneumoniae, Acinetobacter anitratus, and Serratia plymuthica. Among the Gram-positive isolates, Staphylococcus intermedius was the most common species, followed by S. aureus, coagulase-negative staphylococci, and enterococci. Sensitivity results obtained with 6 antibiotics showed least resistance to enrofloxacin, the rate being 19% for all isolates together. More than two-thirds of isolates were resistant to tetracycline. For Gram-positive isolates, resistance to cephalothin was even less than that against enrofloxacin, with a rate of only 13%. Overall resistance to amoxicillin-clavulanic acid was 36%. The most common drug used for treatment of urinary tract infections in Grenada has been amoxicillin-clavulanic acid, followed by enrofloxacin.

Urinary Tract Infection, Dogs, Bacteria, Antibiotic Susceptibility, Grenada

Hariharan, H. , Brathwaite-Sylvester, E. , Matthew Belmar, V. and Sharma, R. (2016) Bacterial Isolates from Urinary Tract Infection in Dogs in Grenada, and Their Antibiotic Susceptibility. Open Journal of Veterinary Medicine, 6, 85-88. doi: 10.4236/ojvm.2016.66010.