Influenza Virological Surveillance in the WHO African Region, Epidemiological Week 39, 2017
During epidemiological week 39, 16 laboratories (Burkina Faso, Cameroon, Central African Republic, Cote d’Ivoire, Democratic Republic of Congo, Ethiopia, Ghana, Kenya, Madagascar, Mali, Mauritania, Mauritius, Senegal, Sierra Leone, South Africa and Zambia) in the African region influenza laboratory network contributed data for analysis . During week 39, 128 specimens were positive for influenza out of the 569 that were tested (22% positivity rate). Influenza types and subtypes identified were influenza A/H3 (36/128, 28%), influenza A/H1N1pdm09 (28/128, 22%) and influenza B (64/128, 44%).
Cumulatively* from epidemiological week 1 to 39 the AFR influenza laboratory network has collected over 27,100 specimens and tested 26,064, of which 3,746 have been positive for influenza virus (positivity rate 14%).
* adjusted for retrospective data .