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2 votes
A vaccine uses.......?A) weak virus formB) dead virus formC) both a & bD) extraterrestrial DNA

asked
User Yan Q
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1 Answer

6 votes

Most of vaccines that we know use weak virus form in order to modulate the imune system and make it stronger in case the organism has any contact with the virus that causes the disease. The answer is letter A.

answered
User Allan Hasegawa
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7.6k points
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