Tennessee health officials say at least 74 people have contracted hepatitis A in Nashville since last December. Nashville’s Metro Public Health Department said free vaccines for at-risk groups are being offered at three public health centers. Hepatitis A is a liver disease caused by a virus but it can spread through close contact with an infected person. Symptoms include fever, nausea, vomiting, abdominal pain and dark urine. Other states, including Kentucky and West Virginia, have also reported outbreaks.