Recently, the new crown epidemic has suddenly hit Nanjing, the emergence of mutated viruses, cluster cases have been found, etc., so that everyone's loose nerves have tightened again.
Infectious diseases are like this, as long as there is one patient in the world, the rest of the world is at risk.
For the cunning virus, what we can do is to continue to do the things that have allowed us to defeat the virus:
Wear a mask, wash your hands frequently, and go out less often.
There is also a new crown vaccine, which can be played as long as it can be played.
bibliography
[1] Baxter D. Active and passive immunity, vaccine types, excipients and licensing. Occup Med (Lond). 2007;57(8):552-556.
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