Can a person who is allergic to eggs receive MMR vaccine?
Egg allergy is no longer considered a contraindication to MMR vaccine. In the past, egg protein was believed to be responsible for rare anaphylactic reactions following MMR vaccine. The concern now is that gelatin, which is used as a stabilizer in MMR, may be the culprit. Measles and mumps vaccine viruses are grown in chick embryo fibroblast tissue culture and don’t contain ovalbumin. Several studies have demonstrated the safety of MMR for persons with egg allergies.