Viruses are most deadly pathogens on the earth. Even though they are minute, they can prey on a very big mammals. Interestingly, they cannot even survive on their own; they infect and multiply on host. Humans are battling against viruses
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Viruses are most deadly pathogens on the earth. Even though they are minute, they can prey on a very big mammals. Interestingly, they cannot even survive on their own; they infect and multiply on host. Humans are battling against viruses
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