The information presented in this update is based on data provided by Ministries of Health and National Influenza Centers of Member States to the Pan American Health Organization (PAHO) or from updates on the Member States’ Ministry of Health web pages.
Regional Update EW 37, 2014
- North America: Influenza activity remained low in the sub-region with co-circulation of influenza A(H1N1)pdm09, A(H3N2) and influenza B. In the United States, no new human infections with influenza A(H3N2) variant (H3N2v) were reported. A total of two H3N2v cases have been reported in 2014 and are not epidemiologically linked.
- The Caribbean and Central America: Continued co-circulation of influenza B and RSV was observed in most countries of this sub-region. Influenza A(H3N2) circulation was observed in some Caribbean countries (Cuba, Dominican Republic, Jamaica).
- South America – Andean Countries: Continued influenza circulation was observed in Bolivia, Colombia, Ecuador and Peru. Co-circulation of influenza A(H1N1)pdm09, A(H3N2) and influenza B was observed, as well as continued circulation of RSV.
- South America - South Cone and Brazil: Although most acute respiratory illness activity indicators in the subregion remained elevated, they were within expected levels for this time of year and continued to decrease. RSV continued to circulate at decreasing levels, and among influenza viruses co-circulation of A(H3N2) and influenza B was observed.