How COVID-19 is caused?
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Answer:
people think its because of interaction between humans and animals but actually its unknown
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We all actually dont know how it was caused. But there is saying that it was created in nuclear lab some say it was found in 'Wuhan' market in china. so i guess no one actually how it spread. but now WHO is saying that it is an airborne virus. in short we all have to be very careful.
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