The state got involved with the investigation as well, Gov. Andrew Cuomo announced Tuesday. Free testing was made available that evening by the state and county health departments.

The case was identified on Sunday, June 28, and investigation revealed that the person attended a 9 a.m. Mass at St. Mary’s one week earlier, June 21.

Cuomo said that person had been exposed to someone who contracted the virus in Florida.

“The individual from Essex County is adhering to appropriate self-isolation measures, and there have been no additional known exposures related to this religious service,” Cuomo said in a news release.

“While this person was not sick at the time of this mass, it does fall within the 48-hour exposure window used as criteria for contact tracing,” Essex County spokesperson Andrea Whitmarsh wrote in an email. “St. Mary’s has a comprehensive plan in place to ensure the health and safety of their parishioners, which includes mask wearing, social distancing and limits on attendance, thereby greatly reducing exposure risk to parishioners.”

Whitmarsh said the county Health Department is asking any attendees of that service monitor themselves for symptoms through at least July 5, “out of an abundance of caution.”