why does a person suffering once from smallpox does not suffer from it again
MrPoizon:
as antibodies are prepared by our body for life long due to which it prevents us from small pox
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Because after that disease is caused , his body has produced antibodies . So if the germs of small pox enters his body the previously present antibodies destroy it.
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Explanation:
This is because when the immune system of owr body first come across an infectious organisms 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 greator vigour. This eliminates the infection more quickly than the first time and thus we do not suffer with the disease again.
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