Abstract
Live poultry market closure and control of avian influenza A(H7N9), Shanghai, China.
Highlights
To the Editor: China reported its first human infections with avian influenza A(H7N9) virus in late March 2013 [1]
A(H7N9) virus occurred, an additional 229 samples were collected from migratory birds at Chongming Island, Shanghai Zoo, and Shanghai Wildlife Park
After human infections with influenza A(H7N9) virus were identified, another 1,129 samples were collected from domesticated mammals for enhanced surveillance; all were negative for H7 subtype influenza viruses
Summary
To the Editor: China reported its first human infections with avian influenza A(H7N9) virus in late March 2013 [1]. The Shanghai forestry authority has conducted surveillance for influenza virus among migratory birds since 2004. During January 2010– April 2013, a total of 884 throat/cloacal swab, serum, and fecal samples from 496 birds were tested, and no infections with influenza viruses of subtypes H7 or N9 were found.
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