Can my 12-month-old get a rash and fever from vaccines?

In 10% of cases. At the 12-month well visit, an infant usually gets the MMR and chicken pox vaccines. These are both live virus vaccines. As a result, about 10% of infants can have a slight fever and mild rash about 10-14 days after the vaccines. Both the fever and rash resolve in a few days.
Yes. Yes - vaccines cause an immune response to what is contained in the vaccine. This may, and may not, include having a fever. Usually, a fever related to vaccines will last up to 3-4 days and not be terribly severe. Any fever that is very high, or any time the child is acting very ill, even after vaccines, you should discuss the situation with your doctor. The reaction may also include a rash.
Yes. Call your child's healthcare provider if your child has a rash or any reaction to the shots other than fever and mild irritability, or if your child has a fever that lasts more than 36 hours.

Related Questions

Can my 15-month-old get a rash and fever from vaccines?

Yes. A small number of children get a rash and fever 7 to 14 days after the measles-mumps-rubella (MMR) or the varicella vaccines. The rash is usually on the main body area and lasts 2 to 3 days. Call your healthcare provider within 24 hours if the rash lasts more than 3 days or gets itchy. Call your child's provider immediately if the rash changes to purple spots. Read more...
Yes. Yes - vaccines cause an immune response to what is contained in the vaccine. This may, and may not, include having a fever. Usually, a fever related to vaccines will last up to 3-4 days and not be terribly severe. Any fever that is very high, or any time the child is acting very ill, even after vaccines, you should discuss the situation with your doctor. The reaction may also include a rash. Read more...