Do Vaccine Ingredients Cause Adverse Events?
Conclusion Certain ingredients that are present in some vaccines (other than disease-specific antigens), such as gelatin or neomycin, can very rarely cause severe hypersensitivity reactions (e.g. anaphylaxis) in vaccinees with those specific allergies. In addition, some adjuvants can cause increased rates of local reactions, and alum-containing adjuvants can cause nodules at the injection site. Vaccine ingredients, including the preservative thimerosal, do not […]