The Westchester County Health Department is warning residents that a person infected with hepatitis A worked at a private event last week and may have exposed others.

The department says anyone who was at the event space at Factoria in Peekskill on Feb. 15 may have been exposed to the illness.

As well, they say anyone who was at Fin and Brew in the same area on Feb. 16 or Feb. 19 may have also been exposed. This is because the restaurant shares an ice machine with the event space.

Officials say they are contacting patrons to alert them of their potential exposure. They say patrons at other restaurants in the complex aren't at risk due to having separate facilities.

The department is offering free preventive treatment to any patrons who may have been affected. They say the treatment is only effective if given within two weeks of the exposure.

Anyone who received a hepatitis A vaccination or has a prior history of the infection don’t need to be treated.

The department says the affected facilities are cooperating and have conducted through cleanings, had their staff vaccinated, and will have the establishments re-inspected.

More information about registering for preventative treatment can be found here.