Вопросов: 7, прохождений: 1
When a microorganism enters our body, it produces…
What contributes to the weakening of the immune system?
which cells help to destroy bacteria in our body?
Is it necessary to produce a large amount of an antidote before the death of the body occurs?
After getting sick, will our body remember this virus in order to avoid re-infection?
What will our body do when we get a toxin?
What are vaccines used for?
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