less than the donor
The co-infection mentioned in the article has become a rather troublesome problem in Europe and the United States this year. In the spring and summer, Europe and the United States released epidemic control. In fact, the toxicity of the new crown virus is not very high now. After all, it has experienced several waves of herd immunity. However, respiratory syncytial virus, seasonal influenza and new crown began to co-infect this winter. This point Very headache. In our country, it can be clearly seen that the symptoms in the northern region are much more severe than those in the south after infection. This may not be a problem with the virus strain. After all, after the release of people, the virus strain has long been “stirred in chaos”. It is winter in the northern part of the new year, and seasonal influenza and respiratory diseases have a lot to do with the co-infection of Omicron.
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