Demand For Measles Vaccine Increases As Outbreak Started At Disneyland In California Spreads [Getty Images]

MIAMI, FL - JANUARY 28: Miami Children's Hospital pediatrician Dr. Amanda Porro, M.D administers a measles vaccination to Sophie Barquin,4, as her mother Gabrielle Barquin and Miami Children's Hospital R.N. Diane Lichtman (R) hold her during a visit to the Miami Children's Hospital on January 28, 2015 in Miami, Florida. A recent outbreak of measles has some doctors encouraging vaccination as the best way to prevent measles and its spread. (Photo by Joe Raedle/Getty Images)

Getty Images News Joe Raedle