Who: many countries have yet to control widespread community transmission

, August 13th, novel coronavirus pneumonia was held by who. Michael Ryan, who is responsible for health emergency, said that only a small number of people worldwide had new crown virus and had immune memory, and most of the population was still susceptible. There are still many countries that are still dealing with large-scale community-based transmission that has not yet been controlled and should take very strong measures to control the epidemic. There are also countries that have previously brought the epidemic under control again, mainly concentrated infections caused by specific activities. These countries are trying to control the epidemic and avoid a recurrence of community-based transmission. Constellation

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