What size needle for an injection? This is a question that many people ask, but there is no one definitive answer. The size of the needle depends on the person’s weight and the location of the injection. For people who are...
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No Needle Vaccine 1967
The No-Needle Vaccine was developed in 1967 by Dr. Maurice Hilleman and it was the first vaccine to be delivered without a needle. The vaccine was created using a jet injection system that used a high-pressure air stream to deliver the...
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