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11 April 2013 Update - Human Infection with Avian Influenza A(H7N9) Virus in China

As of April 11, 2013 (17:00 Beijing Time), additional five cases of human infection with influenza A(H7N9) virus were laboratory confirmed (17:00 April 10-17:00 April 11 Beijing Time). Three cases are from Shanghai, and the other two from Jiangsu. There is one more death from Shanghai.

To date, a total of 38 cases have been laboratory confirmed with influenza A(H7N9) virus in mainland China, including ten deaths. These cases are distributed over 23 prefectures/districts of 4 provinces, including Shanghai (18 cases, 6 deaths), Jiangsu (12 cases, 1 death), Anhui (2 cases, 1 death) and Zhejiang (6 cases, 2 deaths).

At this time no epidemiological link between the human cases was identified. All close contacts are being closely monitored with medical observation, and no abnormal symptoms of illness were found in the contacts. So far, all confirmed human infections with A(H7N9) are sporadic cases, and there is no evidence of ongoing human-to-human transmission.

Chinese Center for Disease Control and Prevention(China CDC)

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