Corona virus now has 3 types (or 3 types of mutations) that spread in the world.

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Strain A: or the initial type of corona virus that was allegedly first spread in China in the Wuhan region originating from the bat virus then infecting the tringgiling and then jumping on humans. Strain B: The initial mutation of the Strain A corona virus, this type spreads slowly in China but is very aggressive in its spread outside China. Even in European countries, especially Britain, a virus that attacks a lot is the type B strain. Except for Italy and Spain. Strain C: Actually this is the next mutation of the corona virus Strain B. This strain C itself is considered to be the initial mutation in Singapore and a major cause of damage in Italy. America itself is currently battling this corona virus and the number of victims is almost the same as Italy and Spain and is estimated to be the country most affected by this corona virus. The majority of the corona virus in America itself is Strain A like the initial virus in the city of wuhan.