Why are vaccines shots? Would more people get them if they weren't?

They are the most effective way of inserting medicine.

If they weren't needles, they would definitely be used more.

Explanation:

Many times vaccines need to be administrated into muscles and strong tissue, so they need a needle to get all the way through. Other ways of giving vaccines are proved to be less potent and do not work as well.

Research also shows that 24% of parents fear needles and 63% of children fear needles.

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