Why a person suffering once from small pox cannot suffer from it again?
Name one disease associated with the attack of microbe on the lungs.

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Solution

This is because when the immune system of our body first come across an infectious organism like a virus causing small pox, it responds against virus and then remembers it specifically. When next time particular microbe or its closer relatives enter the body, immune system of the body responds with the pathogen even with greater vigour . This eliminates the infection more quickly than the first time and thus we do not suffer with disease again.
Disease associated with the attack of microbe on the lungs is Tuberculosis.

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Why a person suffering once from small pox cannot suffer from it again?Name one disease associated with the attack of microbe on the lungs.

Why a person suffering once from small pox cannot suffer from it again?
Name one disease associated with the attack of microbe on the lungs.