Skip to content



Epidemiological AlertsSince the beginning of 2011, in the region of the Americas, there have been significant outbreaks of influenza A (H1N1) 2009, that while geographically limited, have generated a significant demand on health services. This situation is not unexpected. Since the end of the pandemic (2009-2010), the influenza A (H1N1) 2009 virus, continues to circulate on a global level like a seasonal strain, periodically causing important outbreaks in various continents. Considering the possibility of outbreaks occurring on account of the influenza A (H1N1) 2009 virus in the countries of the Region, national authorities should be prepared to mitigate the resulting impact.

icon Epidemiological Alert: On Probable Influenza A(H1N1) 2009 Outbreaks (Published on 20 April 2011)

Last Updated on Wednesday, 20 April 2011 10:15

Regional Office for the Americas of the World Health Organization
525 Twenty-third Street, N.W., Washington, D.C. 20037, United States of America
Tel.: +1 (202) 974-3000 Fax: +1 (202) 974-3663

© Pan American Health Organization. All rights reserved.