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N Engl J Med. Serologic Study for Influenza A (H7N9) among High-Risk Groups in China
[Source: The New England Journal of Medicine, full text: (LINK). Extract.]
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Correspondence
Serologic Study for Influenza A (H7N9) among High-Risk Groups in China
May 29, 2013DOI: 10.1056/NEJMc1305865
To the Editor:
Human infections with novel avian-origin influenza A (H7N9) virus were recently identified in March 2013, in China. As of May 17, a total of 131 human infections and 36 fatal cases have been reported. Nearly 84% of confirmed human cases (110 of 131) were from eastern China. The epidemiologic and virologic studies have revealed that poultry exposure may be an important risk factor for H7N9 infection in humans. We investigated whether subclinical human infection with the novel H7N9 virus occurred in poultry workers before 2013. To determine this, we detected the prevalence of antibodies to avian-origin influenza A (H7N9) virus using serum samples collected between January 2012 and November 2012 from poultry workers in Shanghai, Zhejiang, Jiangsu, and Anhui provinces, all located in eastern China.
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-Serologic Study for Influenza A (H7N9) among High-Risk Groups in China
May 29, 2013DOI: 10.1056/NEJMc1305865
To the Editor:
Human infections with novel avian-origin influenza A (H7N9) virus were recently identified in March 2013, in China. As of May 17, a total of 131 human infections and 36 fatal cases have been reported. Nearly 84% of confirmed human cases (110 of 131) were from eastern China. The epidemiologic and virologic studies have revealed that poultry exposure may be an important risk factor for H7N9 infection in humans. We investigated whether subclinical human infection with the novel H7N9 virus occurred in poultry workers before 2013. To determine this, we detected the prevalence of antibodies to avian-origin influenza A (H7N9) virus using serum samples collected between January 2012 and November 2012 from poultry workers in Shanghai, Zhejiang, Jiangsu, and Anhui provinces, all located in eastern China.
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