Between a Few

Genetic analysis indicates that, in one instance, the novel avian influenza H7N9 virus was transmitted between people, Chinese researchers report in the British Medical Journal.

Using rRT-PCR, viral culture, and a hemagglutination inhibition assay, the researchers examined samples from two infected patients — father and daughter — their contacts, and their environment. Based on both sequence and phylogenetic analysis, the team determined that the strains were "almost identical."

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