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 34, 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, one new human infection with an influenza A(H3N2) variant(H3N2v) was reported by Ohio. The case reported close contact with swine in the week prior to illness. No ongoing human-to-human transmission has been identified. A total of two H3N2v cases have been reported in 2014 and are not epidemiologically linked.
- The Caribbean and Central America: Circulation of influenza B was observed in this sub-region. Co-circulation with influenza A(H1N1)pdm09 was observed in Guatemala and Panama while co-circulation with influenza A(H3N2) was observed in Dominican Republic, Honduras and 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, and among influenza viruses, A(H3N2) predominated with influenza B co-circulation.