asked 198k views
2 votes
A vaccine contains answer horse serum. antibodies. penicillin. treated antigens.

1 Answer

5 votes
Answer: all of the answer choices given, potentially.
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(If it is a penicillin vaccine; it will include penicillin; as well as the other answer choices).
answered
User Alex Essilfie
by
8.0k points
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