Science, asked by shalmaleeghosh777, 1 month ago

from what is a vaccines prepared

Answers

Answered by AbhiThakur07

1

Explanation:

=>Use part of the bacteria

Several vaccines are made by taking toxins and inactivating them with a chemical (the toxin, once inactivated, is called a toxoid).
By inactivating the toxin, it no longer causes disease. The diphtheria, tetanus and pertussis vaccines are made this way.

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