Hundreds of patrons of a posh Manhattan hot spot, including A-list celebrities who attended actor Ashton Kutcher's 30th birthday party there, may have been exposed to hepatitis A, health officials said. The Department of Health and Mental Hygiene offered free vaccines through Sunday to anyone who had been to Socialista in the West Village during the city's Fashion Week this month, after a bartender there was found to have the infectious disease. More than 700 people, including celebrities who attended Kutcher's bash, may have been exposed to the liver disease, health department officials said. Demi Moore, Bruce Willis, Gwyneth Paltrow, Ivanka Trump and Madonna reportedly attended the event. It wasn't clear whether any celebrities had been vaccinated. The hepatitis A virus is found in fecal matter. The infected Socialista bartender handled glasses and garnishes, and there was no soap behind the bar, said health department spokeswoman Jessica Scaperotti.