KEY POINTS:
Hundreds of patrons of a Manhattan hot spot, including A-list celebrities who attended actor Ashton Kutcher's 30th birthday party there, may have been exposed to hepatitis A.
The Department of Health and Mental Hygiene offered free vaccines to anyone who had been to Socialista in the West Village, after a bartender there was found to have the infectious disease.
Demi Moore, Bruce Willis, Gwyneth Paltrow, Ivanka Trump and Madonna are reported to have been among Kutcher's guests.