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4-year-old boy's case suggests virus immunity

By Xu Wei and Wang Qingyun | China Daily | Updated: 2013-04-16 07:58

4-year-old boy's case suggests virus immunity

Health workers obtain samples from pigeons at a village in Cuigezhuang township, Chaoyang district, Beijing, on Monday. A 4-year-old boy from the village was found to have the H7N9 virus. Hou Yu / China News Service

4-year-old boy's case suggests virus immunity

A 4-year-old boy in Beijing confirmed as an H7N9 flu virus carrier who has not yet shown symptoms may be an indication that some people are immune to the disease, a health official has said.

4-year-old boy's case suggests virus immunity

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