HSV-1 can also affect the genitals and be spread through oral, genital, or anal sex. HSV-1 may be spread by sharing saliva or items like utensils that have come into contact with the virus, though this is somewhat rare. The virus can also be spread when no symptoms are present. Touching or kissing an active cold sore can transmit the virus. The most notable symptom is a small white or red blister on the mouth or genitals. It’s also common: 67 percent of people under 50 have the virus in their bodies. HSV-1Īlso called oral herpes, HSV-1 can easily be passed on through kissing. Herpes simplex virus (HSV) can take two different forms.
