WHO (2019) WHO Consultation and Information Meeting on the Composition of Influenza Virus Vaccines for Use in the 2019-20 Northern Hemisphere Influenza Season. 21 February 2019, Beijing, China.
https://www.who.int/influenza/vaccines/virus/recommendations/consultation201902/en/index1.
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has been cited by the following article:

• TITLE: A Study of Flu Epidemics in Portugal

  AUTHORS: Edgar Pereira, Cecília Rosa

  KEYWORDS: Flu Epidemic, Vaccination, Trend Line, Monotonic Behaviour, Periodic Behaviour

  JOURNAL NAME: Open Journal of Social Sciences, Vol.7 No.10, October 21, 2019

  ABSTRACT: We study the flu seasonal epidemics in Portugal in the last 20 years. Based on the analysis of historic data gathered from the official weekly reports we present some scenarios for the next 20 years.