Health officials in New York state confirmed four more cases of measles outside of New York City on Thursday.

The state Department of Health said that three patients, who are residents of Orange County, are less than 5 years of age and who recently traveled internationally all have tested positive. The DOH is monitoring the cases in coordination with the Orange County Health Department.

Ontario County public health officials also confirmed a measles case from a resident who they say had been exposed outside the United States and tested positive in late March. They have since recovered. The county says that resident isolated at home until they were no longer contagious and no additional exposures or cases have been identified.

These cases bring the total number of cases in New York this year to eight. Health officials in early April began advising New Yorkers traveling out of the country or to areas experiencing an outbreak to be fully immunized against the disease.

As of Tuesday, the U.S. Centers for Disease Control and Prevention have confirmed more than 930 measles cases so far this year, more than triple the amount seen in all of 2024, with the majority of cases in Texas and other parts of the Southwest. Officials are also monitoring outbreaks in Canada.

"All New Yorkers are urged to protect themselves by making sure they're up to date on their measles, mumps and rubella vaccines along with other important, lifesaving immunizations and be aware of health advisories when traveling with unvaccinated individuals, especially young children," the DOH said in a release Thursday.

To learn more about measles and prevention methods, visit the state Department of Health website.