CDC A transmission electron micrograph of a small cluster of the ribonucleic acid (RNA) hepatitis A virus (HAV). Roughly 40 people were possibly exposed to hepatitis A while eating at a Waffle House in Concord last month, according to Cabarrus County health officials. A restaurant employee working at the Waffle House near I-85 and Copperfield Boulevard (1010 Vinehaven Dr.) was infected and exhibited symptoms during a shift at the restaurant that lasted from 9 p.m. on June 20 to 7 a.m. June 21, said Marcella Beam, a spokesperson for the Cabarrus Health Alliance. Hepatitis A is a vaccine-preventable, highly contagious viral liver infection caused by the hepatitis A virus and can be spread by ingesting contaminated food or water.