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

As of April 10, 2013 (17:00 Beijing Time), additional five cases of human infection with influenza A(H7N9) virus were laboratory confirmed (17:00 April 9-17:00 April 10 Beijing Time). Two cases are from Shanghai, one from Zhejiang, and the other two from Jiangsu. One infected child from Shanghai was discharged from hospital on 10 April.

To date, a total of 33 cases have been laboratory confirmed with influenza A(H7N9) virus in mainland China, including nine deaths. These cases are distributed over 20 prefectures/districts of 4 provinces, including Shanghai (15 cases, 5 deaths), Jiangsu (10 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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