Herpesvirus: One of a family of viruses that contain DNA and that cause infections in humans (human herpesviruses) or animals. Herpesviruses are common and often live in the host's tissue for years or even decades without causing symptoms. QUESTION Condoms are the best protection from sexually transmitted diseases (STDs). See Answer From Healthy Resources What I Learned from Having HIVHIV Prevention Tips Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew Health Solutions From Our Sponsors Shot-Free MS Treatment Your Child and COVID-19