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International Influenza

Note: For the 2016-2017 season, CDC recommends use of the flu shot (inactivated influenza vaccine or IIV) and the recombinant influenza vaccine (RIV). The nasal spray flu vaccine (live attenuated influenza vaccine or LAIV) should not be used during 2016-2017. The 2016-2017 influenza vaccination recommendations are now available.

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.

Featured Photo

A pregnant woman waits in the doorway of a clinic to receive her vaccine. Brazil. 2014-2015 season.

A pregnant woman waits in the doorway of a clinic to receive her vaccine. Brazil. 2014-2015 season.

Brazil is a large country with different climatic regions, and is responsible for influenza surveillance in  more than two hundred million people.  Since 2011, with CDC's help through a cooperative agreement, the Ministry of Health has strengthened surveillance in order to understand the epidemiology of circulating viruses. This has allowed Brazil to better estimate its burden of influenza and expand its vaccination program beyond the elderly and select risk groups to include a greater emphasis on pregnant women and other vulnerable populations.

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International Program Highlights

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. 

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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.

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Laos and Nicaragua Protect High-Risk Persons from Influenza

Woman receives seasonal flu vacccination from female nurse in LaosThis 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.

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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.

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International Influenza Activity

Influenza Types

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