Skip to content



Epidemiological Alerts In light of the current reality of transmission of wild poliovirus at global levels and due to events hosted in the Americas that bring together large groups of people, the Pan American Health Organization / World Health Organization (PAHO / WHO) emphasizes the continued importance to maintain immunization coverage above 95% and to keep surveillance systems alerted to the risk of the introduction of imported cases of wild polio virus in the Region.

icon 22 September 2011 Poliomyelitis due to wild poliovirus

Last Updated on Monday, 26 September 2011 09:05

Archive by Year

2013

2011

2010

2004

2003

:: See all the Epidemiological Alerts and Updates

Available from 2009-2014 only

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.