CLEAN : Not confirmation of human to human

The video discusses the transmission and lethality of a new influenza virus, highlighting that while person-to-person transmission is not confirmed, the virus is highly lethal. It is more easily transmitted from poultry to humans compared to H5N1. The video also covers the effective preventive measure taken by Shanghai, which involved closing live poultry markets, leading to a decline in new cases of the H7N9 virus.

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