Anderson spoke about the disease while accepting amfAR's award of courage.
The company says that the candy may have come into contact with a worker in their facility who tested positive for hepatitis A.
The Pennsylvania Department of Health is warning patients of a dentist that they could have been exposed to HIV or hepatitis B and C.
Customers at a spa are being urged to get tested for HIV after getting "vampire facials."
More than a dozen elementary school students had to be tested for HIV and hepatitis after being poked with a needle that a fellow student brought onto campus.
The heroin epidemic is driving up hepatitis C infections, with the biggest increase in people in their 20s, U.S. health officials said Thursday.