La co-infection des virus HIV et HSV est tres frequente. Elle ne doit pas etre meconnue pour deux raisons :1)la particularite clinique de ces manifestations,2)la facilitation de l'acquisition et de la transmission du virus HIV par le virus HSV.
Co-infection by HIV and HSV viruses his known since AIDS epidemic has started. A better knowledge of the strong relations between the two viruses has demonstrated that HSV infection increases the rate of HIV transmission. HSV2 infection is occuring in younger people below 20 years old where incidence has much increased those last years, in teen agers with a high number of sexual partners. The increase in HIV infection and transmission in HSV positive patients leads to treat genital ulcers to decline the rate of HIV and HSV transmission.