The Rockland County Health Department warned residents Sunday that they “may have been exposed” to coronavirus if they attended events in Monsey where two virus-positive people worked.

Two caterers from Ramapo tested positive for the illness after working a pair of gatherings in Monsey: one from Feb. 28 into the 29th at 150 Remsen Ave., which houses a synagogue, and the other March 2 at the Atrium Ballroom, a catering hall.

At least one of the caterers had worked a funeral Feb. 22 or a bat mitzvah Feb. 23 at the Temple Young Israel of New Rochelle in Westchester County, where a lawyer who has been linked to the majority of New York’s positive cases is a member.

The workers’ cases are Rockland’s only two positive cases so far.

County Health Commissioner Dr. Patricia Schnabel Ruppert cautioned in an e-mail that anyone who went to either event in Monsey “may have been exposed to coronavirus.

“It was previously believed that these infected individuals had not worked as caterers during these events and it was only through the detective work of one of our investigators that this discovery was made,” Ruppert said in a statement.

“Any person who believes they may have been exposed should contact their health care provider by phone right away. I also ask that anyone who becomes ill with this disease be completely forthcoming with our investigators, it is only with your help that we can prevent the spread of this disease.”

Health officials said they are still monitoring 22 quarantined people in the county.

Steve Cohn, the Atrium’s manager, told The Post on Sunday that the two infected people are a waitress and event maitre’d who were hired from an outside catering company in Spring Valley roughly 2 miles away.

Cohn said none of his “silverware and glasses” were used at the Atrium event, as those items were brought in from the contracted business. Starting Monday, the facility will disinfected, he added. Employees told a Post reporter on Sunday they are taking “precautions” and “cleaning the whole place.”

People coming and going at the 150 Remsen address did not want to comment other than to say the event there involved an outside group, so they weren’t concerned.

Gov. Cuomo said at an unrelated press conference on Long Island on Sunday that he is warning New Yorkers to “avoid large gatherings” to prevent the community spread of the virus.

He announced there are now 105 total positive cases in the state, 82 of which are in Westchester Country.

Cuomo declared a state of emergency Saturday to help contain the spread, following a spike in positive cases.