HSV-1 (herpes simplex virus-1)

author:

HSV-1 (herpes simplex virus-1)

One type of the herpes virus. HSV-1 typically infects the mouth, causing cold sores. More rarely, HSV-1 can infect the genitals. HSV-1 is extremely common and may not always be transmitted sexually, as skin-to-skin contact is all that’s needed to pass it on.