Medically reviewed by Kate Colby, MPH A sexually transmitted infection (STI) is passed from one person to another through sexual contact. An STI can have a viral cause, like human papillomavirus (HPV) ...

Viral STIs, like genital herpes, genital warts, hepatitis B, and HIV, cannot be cured; however, the symptoms can be treated and controlled. Content When you have genital, anal, or oral contact with a ...

And if you’re pregnant, you can pass it on to your newborn. Viral hepatitis is an inflammation of your liver that's caused by a virus. The most common ones in the U.S. are hep A, B, and C.