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 18, 2013
- North America: in Canada and the US, most influenza activity indicators were within the expected level for this time of year. Influenza B remained as the dominant circulating influenza virus in Canada and the US. In Mexico, influenza A(H3N2) remained the most prevalent virus.
- Central America and the Caribbean: similar or increasing respiratory virus activity was reported in this sub-region as compared to previous weeks. In this sub-region, among influenza viruses, influenza A(H1N1)pdm09 have been increasing in Cuba and Dominican Republic in the last weeks. Among other respiratory viruses, parainfluenza (Cuba, Dominican Republic, Honduras and Panama) and RSV (Costa Rica) were also reported.
- South America: acute respiratory infection (ARI) activity showed an increasing trend in most countries but remained within the expected levels for this time of the year. In the Andean countries, RSV was the predominant circulating virus, with co-circulation of influenza A(H1N1)pdm09 in Colombia, influenza A(H3N2) in Ecuador, and with influenza B in Bolivia. In the Southern Cone, RSV circulated predominantly. In Brazil, among the SARI cases, influenza A(H1N1)pdm09 was the predominant virus.
Last Updated on Saturday, 18 May 2013 10:17
Influenza Reports by Year