why does a person suffering once from small pox cannot suffer from it again?
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because the present virus had gone so because we can't suffer from it again
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When our body comes across to face a disease like smallpox in the first time then our immune system of the body produces antibodies to protect the body and fight for the pathogen or the germs. ... So this is the reason that if any person suffers from smallpox then he or she normally does not again suffer from smallpox.
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