Massapequa Park, Jan 04 (Agencies): Health officials say hundreds of people may have been exposed to hepatitis A while receiving communion on Christmas Day at a church on Long Island, New York

The Nassau County Health Department said on Monday it will offer vaccines this week to anyone who received communion at the church December 25.

A church spokesman told Newsday that the investigation was ongoing and that he could not identify who might have transmitted the virus.

Symptoms may include fever, fatigue, poor appetite, nausea, stomach pain, dark-colored urine and jaundice. The disease is rarely fatal and most people recover in a few weeks without any complications.