Monday, May 19, is the third annual National Hepatitis Testing Day. Part of the U.S. Department of Health and Human Services’ newly updated “Combating the Silent Epidemic of Viral Hepatitis: Action Plan for the Prevention, Care & Treatment of Viral Hepatitis,” the day aims to ensure that at-risk populations learn about and get screened for chronic infections of the hepatitis B and C viruses (HBV, HCV).

For the event, the U.S. Centers for Disease Control and Prevention (CDC) is offering a wide array of online promotional materials, such as posters, buttons, banners and PSAs, to get both health-care providers and the public up to date on potential risk factors for the disease.

Currently, millions of Americans have either hep B or C, but most don’t know they are infected. Baby boomers, injection drug users and people who received blood transfusions before the 1990s are considered the groups most likely to carry the viruses.

For help locating a free hepatitis testing location near you, click here. To calculate your hepatitis risk online with the CDC, click here.