83 new avian influenza cases confirmed in China

83 more avian influenza cases confirmed in China | Courtesy of

The National Health and Family Planning Commission (NHFPC) of China told the World Health Organization (WHO) that there have been another 83 human cases of the avian influenza A (H7N9) virus as of Feb. 4.

The most recent patients are between the ages of 1 and 88 with the median age being 56. Of the new patients, 73 percent were men. There were 19 deaths among the 83 new cases.

Exposure to live poultry was cited in 93 percent of the cases. Only five cases were not connected to poultry exposure. There are four cases in which the exposure history was unknown.

Two of the cases consisted of three family clusters that had exposure to live poultry.

The most recent laboratory-confirmed cases had onset dates between Dec. 20, 2014, and Jan. 27, 2015.

Avian influenza shows a pattern that is seasonal, peaking between January and March (the coldest months in China) and sporadically appearing in summer months.

Health professionals first notified WHO of avian influenza cases in March 2013. Since that time, laboratories have confirmed 568 cases of which 204 patients died.

The patients have been located in many regions, including Zhejiang, Jiangsu, Guangdong, Fujian, Shanghai, Anhui, Hunan, Hong Kong, Jiangxi, Xinjiang Uygur Zizhiqu, Beijing, Guangxi, Shandong, Taiwan, Henan, Hebei, Guizhou and Jilin.

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