anaphylactic reactions to MMR vaccine may be due to an allergy to GELATIN
Researchers now say that anaphylactic reactions to MMR vaccine may be due to an allergy to GELATIN...not eggs.
This is a surprise. Experts used to think these reactions were caused by traces of egg protein in the vaccine...but now we know that kids with egg allergy can be safely vaccinated with MMR.
Now gelatin allergy has been documented in some Japanese children who had allergic reactions to MMR vaccine. The CDC is now testing for gelatin allergy in U.S. children with MMR reactions.