I don't knowH7n9 avian influenzaI don't know
In april 2013ChinaNew types of h7n9 avian influenza have emerged in shanghai and jiangsu, the first new sub-influenza virus found globally. The h7n9 sub-influenza virus has been found only in birds, and there have been avian outbreaks in places such as the netherlands, japan and the united states, but for the first time. Due to the scattered and small number of cases and the lack of sufficient data for analysis, it is not clear where the source of the disease is. However, according to publicly available information, a significant proportion of those infected with the h7n9 influenza virus have had a history of avian exposure. Health and safety regulations have been strengthened in various parts of the country, and shanghai has released level iiiEarly warningI don't know。
