More than 42 days have passed since new measles vases were reported in Sullivan and Orange counties — a milestone reached the previous week by Rockland County, the Department of Health said in a statement on Thursday.

Over the last year, 406 people have been infected with measles in the Hudson Valley counties of Rockland, Orange, Sullivan and Westchester, which public health officials have attributed to international travel.

Officials during that time have administered almost 85,000 vaccinations, a 75 percent increase from the previous year.

“The threat, however, for vaccine-preventable diseases remains and the Department is not letting down its guard,” the DOH said in a statement.

“The Department is currently working with our partners in Rockland County in investigating a case subject who contracted measles internationally and traveled to Rockland County. Additionally, the Department has active public health responses underway in Nassau (two cases), Monroe (one case) and Putnam (one case) counties related to measles exposures from international travel but not affiliated with the 2018 outbreak.”

State lawmakers and Gov. Andrew Cuomo earlier this year approved legislation ending the religious exemption for vaccinations in New York.