marikko18
marikko18 marikko18
  • 20-07-2020
  • Biology
contestada

why most vaccines have to be given by injection?​

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plantmomma04
plantmomma04 plantmomma04
  • 20-07-2020
most vaccines need to be given by injection because entering the stomach can make one ill. However entering through the bloodstream doesnt cause illness
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kennethafriyie15
kennethafriyie15 kennethafriyie15
  • 20-07-2020
Most vaccines are given by injection because injection is the simplest way into your bloodstream
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