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Elenna [48]
3 years ago
5

Doctors often use certain medications to treat infections. A few people have a reaction to some of these medications, such as it

ching, swelling, or trouble breathing. This is an example of
1. using antibodies to cure a medical problem
2. the body's immune system overreacting to a usually harmless substance
3. the body creating a mutation to fight unknown pathogens
4. a vaccine causing the body to produce antigens against the infection
Biology
1 answer:
d1i1m1o1n [39]3 years ago
4 0
Number 4 the antigens fight off the infection since the body knows it is an infection
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