Explain the role of viruses in human welfare. (2 Marks)

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Solution

Role of virus in human welfare:

(1) Many vaccines are contrived from virus that are exiting from polio, small pox, herpes, mumps, hydrophobia, measles, etc. [1 Mark]

(2) Help to cure bacterial diseases like bacillary desentery, cholera, typhoid etc. Bacteriophages are used as medicine. [1 Mark]

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