According to the U.S. Centres for Disease Control and Prevention, more than 2,000 measles cases have been reported nationwide this year, with 93 percent occurring among unvaccinated people. This marks the highest number since the highly contagious disease was first considered eliminated in the United States 25 years ago.
Public health experts expect more measles cases well into January, urging the public to get vaccinated.
They have also warned that the United States could lose its elimination status as Canada did last month, if the disease continues to spread for three more weeks.