{"id":"50126d1414b4f1181b5e56dc5933f0c2","slug":"my-12-month-old-has-a-mild-egg-allergy-and-needs-the-mmr-vaccine-next-weekis-it-safe-to-proceed","question":"My 12-month-old has a mild egg allergy and needs the MMR vaccine next week—is it safe to proceed?","answer":"Yes, it's safe to proceed. The MMR vaccine is appropriate for your 12-month-old and does not require special precautions for a mild egg allergy.\n\nMMR is grown in cell culture, not eggs, so it doesn't contain egg protein. Even children with egg allergies can receive it without risk of an allergic reaction to the vaccine itself. A mild egg allergy won't change the timing or safety of the vaccine your pediatrician has scheduled.\n\nWhat matters most is that your child gets protected against measles, mumps, and rubella on the standard schedule—these are serious diseases that can cause long-term complications. The MMR vaccine is well-tested and highly effective, and it protects not only your child but also babies too young for vaccination in your community.\n\nGo ahead with the appointment as planned, and mention the egg allergy to your pediatrician so they have the full picture, but there's no reason to delay or modify this vaccine.","sources":"[{\"pmid\":\"28757060\",\"title\":\"MMR and MMRV vaccines.\",\"journal\":\"Vaccine\",\"year\":\"2018\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/28757060/\",\"score\":0.79},{\"pmid\":\"40621651\",\"title\":\"Measles Outbreak in Texas - Urgent Need for Attention.\",\"journal\":\"Disaster medicine and public health preparedness\",\"year\":\"2025\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/40621651/\",\"score\":0.77}]","thread_json":null,"topic":"vaccines","view_count":0,"created_at":"2026-09-29T00:00:45.795Z"}