Nevada is 1 of 21 states on CDC's measles outbreak list.
Between Jan. 1 and July 14, there were 107 cases of measles reported in the United States, including Nevada.
The disease is common in many parts of the world and travelers bring it into the U.S.
There were 118 cases in 2017 and 86 cases in 2016.
The CDC set a goal in 1978 to eliminate measles in the U.S. by 1982. The goal was not met but the number of cases was drastically reduced because of a vaccine. The disease was declared officially eliminated in 2000.
The majority of those who contract measles are unvaccinated. It's not clear if there have been any cases in the Las Vegas valley.