Answer:
The most important properties of an ideal drug are: effectiveness, safety, and selectivity. If the drug is not effective, it should not be used. There is no such drug as safe drug: all drugs can cause harm. There is no such thing as selective drug: all drugs can cause side effects.
Answer: A vaccine works by flowing in your blood and getting rid of the toxic or bad germs in your body.
Explanation:
Answer:
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