According to information released Tuesday afternoon, a person diagnosed as “possibly having measles” may have exposed other people to the highly contagious virus between July 11 and July 22nd.
Although most people in the United States are immune to measles, either because they received the Measles Mumps Rubella (MMR) vaccine in childhood or because they were exposed to measles prior to the use of vaccines, the following groups of individuals are at risk of becoming infected with measles if exposed:
• Infants less than one year of age who are too young to have received the MMR vaccine;
• Persons who were vaccinated with an inactivated vaccine, which was used from 1963 through 1967, and have not been revaccinated;
• Persons born after 1957 who have only received one dose of MMR vaccine;
• Those who refused vaccination; and
• Those from parts of the world where there is low vaccination coverage or circulating measles.