Measles is a respiratory virus that can survive in the air for up to two hours. Up to 9 out of 10 people who are susceptible will get the virus if exposed, according to the U.S. C

The measles outbreak in Texas has grown to 124 cases mostly in children and in those who are unvaccinated, according to state data published Tuesday.

As the measles outbreak in Texas keeps spreading, parents who previously chose not to vaccinate their children are now lining up to get their kids the MMR shots.