Question

when and by whom were the virus discovered​

Answer 1

Answer:

Two scientists contributed to the discovery of the first virus, Tobacco mosaic virus. Ivanoski reported in 1892 that extracts from infected leaves were still infectious after filtration through a Chamberland filter-candle. Bacteria are retained by such filters, a new world was discovered: filterable pathogens.

Explanation:

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Answer 2

Answer:

November 14 2019 in China .It occurs due to the people in China eating flesh of bats.

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