Infection Risk for Persons Exposed to Highly Pathogenic Avian Influenza A H5 Virus–Infected Birds, United States, December 2014–March 2015
Published Date:Dec 2015
Source:Emerg Infect Dis. 21(12):2135-2140.
Corporate Authors:H5 Investigation Group
Avian Influenza Virus
Highly Pathogenic Avian Influenza Virus
Infection Risk For Persons Exposed To Highly Pathogenic Avian Influenza A H5 Virus–Infected Birds, United States, December 2014–March 2015
Risk Of Influenza Illness
Pubmed Central ID:PMC4672413
Description:Newly emerged highly pathogenic avian influenza (HPAI) A H5 viruses have caused outbreaks among birds in the United States. These viruses differ genetically from HPAI H5 viruses that previously caused human illness, most notably in Asia and Africa. To assess the risk for animal-to-human HPAI H5 virus transmission in the United States, we determined the number of persons with self-reported exposure to infected birds, the number with an acute respiratory infection (ARI) during a 10-day postexposure period, and the number with ARI who tested positive for influenza by real-time reverse transcription PCR or serologic testing for each outbreak during December 15, 2014-March 31, 2015. During 60 outbreaks in 13 states, a total of 164 persons were exposed to infected birds. ARI developed in 5 of these persons within 10 days of exposure. H5 influenza virus infection was not identified in any persons with ARI, suggesting a low risk for animal-to-human HPAI H5 virus transmission.
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