...about NIAID Research on Genital Herpes
Cause Genital herpes
is caused by herpes
simplex virus (HSV). There are two types of HSV. HSV type 1 most commonly infects the mouth and lips, causing sores known as fever blister
s or cold sores. HSV type 2 is the usual cause of genital herpes
, but it also can infect the mouth. Transmission If you have genital herpes
infection, you can easily pass or transmit the virus to an...