So far this year, 107 people have contracted the measles across the United States, according to the CDC.
That includes one case in West Tennessee.
While the state does require children that enroll in child care facilities and public schools to have their measles vaccination, but children can be exempted either for a medical or religious reason.
Doctors warn that not getting vaccinated could have serious consequences.
Measles is usually passed through coughing and sneezing.
Editor's Note: The CDC said the cases of measles it had reported where not part of a unified outbreak. A confirmed measles outbreak as defined by the World Health Organization as three or more confirmed measles cases (at least two of which should be laboratory-confirmed; IgM positive) in a health facility/district/block (approximate catchment population of 100,000) in a month.