Ingested vs. Injected Vaccine Myths

Infants drink the rotavirus vaccine.
Infants drink the rotavirus vaccine. Photo by Vincent Iannelli, MD

Vaccines are given to people in multiple ways.

They can, depending on the vaccine, be:

  • injected into a muscle (IM)
  • injected under the skin (SQ)
  • sprayed in your nose (intranasal)
  • ingested (oral)

No vaccine is injected directly into the blood stream though.

Anti-vaccine folks sometimes say that they are to scare you away from vaccinating and protecting your kids.

Ingested vs. Injected Myths

The other time you may hear the ingested vs injected issue come up is when someone argues that vaccines are dangerous because you are injecting toxins into a child’s bloodstream.

Of course, this is a poor argument because there are no toxins in vaccines and as we have said, vaccines aren’t even injected into the bloodstream.

But what if you did?

It likely wouldn’t work, or at least, wouldn’t work as well.

Getting the route correct is important if you want it to work properly.

Anti-vaccine folks who try and scare you into thinking that injected “skips the boy’s entire detox pathway” don’t understand that all blood eventually goes through the liver and kidneys, which filter and detoxify harmful substances.

The Inter-Related Processes of Absorption, Distribution, Biotransformation, and Elimination
The Inter-Related Processes of Absorption, Distribution, Biotransformation, and Elimination

And this may scare some folks even more, but they should know that whether a “toxin” entered their body through a needle through their skin, the air they are breathing, or something they ate, it is likely going to make its way to their bloodstream before they get rid of it.

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