A 1-year-old child allergic to gelatin should avoid which immunizations?

Children with a gelatin allergy need to be particularly cautious about certain vaccines that may contain gelatin as a stabilizer. The varicella (chickenpox) vaccine and the MMR (measles, mumps, and rubella) vaccine are known to contain gelatin derived from porcine sources.

These vaccines are live attenuated vaccines, and their composition includes gelatin primarily for stability and efficacy. Therefore, if a child has a known allergy to gelatin, it is recommended that they avoid these specific immunizations to prevent potential allergic reactions.

The other vaccines listed in the other choices do not typically contain gelatin or are less likely to pose a risk for a child with a gelatin allergy.