Can a vaccine leak after injection ???

[TED]

Hi all,

This may sound stupid but I was just wondering if it is possible for a vaccine to leak out of the injection site after being injected?
I recently had a vaccine injection, Hep A+B to be exact and shortly after the injection i had a routine checkup by the doctor in which he took my blood pressure on the same arm of the injection site. Of course it squeezed my arm pretty hard and I was just wondering whether it is possible for a vaccine to be ever be squeezed out by pressure around the arm?

Cheers

[JamSamMom]

No it is very unlikely the vaccine leaked out. It is usually given with a 1.5 inch needle in the muscle. Most vaccines are 0.5 ml of fluid so given 1.5 inches into the muscle it is not probable that it would leak out. I am an RN and give vaccines.