Biology, asked by zainab2007328, 9 months ago

what is covid 19 please explain in detail

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Answered by anuradhadubey331
3

COVID-19 is an infectious disease caused by a newly discovered strain of coronavirus, a type of virus known to cause respiratory infections in humans. This new strain was unknown before December 2019, when an outbreak of a pneumonia of unidentified cause emerged in Wuhan, China.

Answered by aroraneena86
2

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