Pediatrician Charles Goodman vaccinates 1 year- old Cameron Fierro with the measles-mumps-rubella vaccine, or MMR vaccine at his practice in Northridge, Calif., Jan. 29, 2015.
Pediatrician Charles Goodman vaccinates 1 year- old Cameron Fierro with the measles-mumps-rubella vaccine, or MMR vaccine at his practice in Northridge, Calif., Jan. 29, 2015. AP
Pediatrician Charles Goodman vaccinates 1 year- old Cameron Fierro with the measles-mumps-rubella vaccine, or MMR vaccine at his practice in Northridge, Calif., Jan. 29, 2015. AP