which vaccines contain neomycin
Neomycin is an antibiotic that interferes with bacterial protein synthesis by binding primarily to the 30S subunit of bacterial ribosomes. Many vaccines contain trace amounts of neomycin to prevent bacterial contamination during the manufacturing process. As a topical medicament, neomycin elicits a high sensitization rate. According to the NACDG, neomycin is the third most prevalent allergen that often manifests as a delayed-type contact dermatitis.