A pediatrician uses a syringe to vaccinate a 1-year-old with the measles-mumps-rubella (MMR) vaccine.
A pediatrician uses a syringe to vaccinate a 1-year-old with the measles-mumps-rubella (MMR) vaccine. Damian Dovarganes AP
A pediatrician uses a syringe to vaccinate a 1-year-old with the measles-mumps-rubella (MMR) vaccine. Damian Dovarganes AP