The new type of bird flu in China, called H7N9, continues to infect and kill people, with the World Health Organization reporting new cases daily. News of the virus is unfolding quickly as public health officials and scientists struggle to learn about it. Among the latest discoveries:
First case with no symptoms
Though most confirmed cases have meant pneumonia and difficulty breathing, Chinese officials have identified a 4-year-old Beijing boy as a carrier of the virus: DNA tests revealed that he is infected but has no symptoms, according to a news report from the Xinhua News Agency.
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