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International Influenza

Global Influenza Surveillance and Response System (GISRS)

The U.S. CDC, located in Atlanta, Georgia, was designated a World Health Organization (WHO) Collaborating Center for Surveillance, Epidemiology and Control of Influenza in 1956. Since then it has played a leading role in the global network. The network, now called the Global Influenza Surveillance and Response System (GISRS), is celebrating its 65th Anniversary this year. Visit CDC’s role as a Collaborating Center and GISRS: Backbone of global surveillance to learn more.

For the latest summaries of global influenza surveillance, visit Influenza Surveillance and Monitoring. For a summary of influenza activity in the United States, see FluView.

CDC Collaborative Study: Improved Global Capacity for Influenza Surveillance

International influenza laboratory and surveillance work. A study by CDC authors published today in the journal Emerging Infectious Diseases found that CDC’s international capacity-building efforts over a 10-year period (2004-2013) have led to substantial improvements in foreign countries’ ability to conduct influenza surveillance and detect emerging virologic threats. 


Laos and Nicaragua Expand Flu Protection with Help from CDC and Growing Partnership

Women chatting in doorway of health clinic. As flu season is wrapping up in the United States, other parts of the world are bracing for the start of their seasons. Thanks to CDC guidance and donations from Partnership for Influenza Vaccine Introduction (PIVI), this year Laos is vaccinating against seasonal influenza for the third year running, and Nicaragua is vaccinating pregnant women against flu for the second year in a row.


Laos and Nicaragua Protect High-Risk Persons from Influenza

Woman receives seasonal flu vacccination from female nurse in Laos This season, thanks to a growing coalition of donors and facilitation by CDC, Laos is vaccinating against seasonal influenza for the second year running, and Nicaragua is expanding their existing flu vaccination program to pregnant women.


African Countries Gain Ground in Fight Against Influenza

Cover image by Dan Higgins, MAMS. The December 15 ‘Influenza in Africa’ supplement gives new data on the burden and epidemiology of seasonal flu in Africa and sheds light on the impact of the 2009 H1N1 pandemic, which tested many countries’ relatively new preparedness plans, laboratory networks and surveillance systems.


International Influenza Activity