Visual History of Worldwide Avian Influenza Outbreaks
For more information on avian influenza, see http://www.pwrc.usgs.gov/ai. Two currently circulating avian influenza viruses, highly pathogenic A(H5N1) and low pathogenic A(H7N9) (hereafter H5N1 and H7N9) are of particular concern due to their high case-fatality rates (approximately 60 and 30% currently), and economic impact to the livestock industry and public health system. H5N1 first emerged in domestic geese in southern China in 1996 (12), and has since infected 60 countries across Asia, Africa, and Europe killing 374 people. This video provides an overview of the outbreaks, using data from the United Nations Food and Agriculture (UNFAO) database.