Study Shows Medicine for HSV Affects HIV

         A clinical study published in The New England Journal of Medicine on February 22
showed that a particular treatment for herpes simplex virus type 2 (HSV-2) helps control
HIV and may be able to lower rates of transmission. The study took place in Burkina
Faso among women who were HIV positive and also had HSV-2. They were taking the
medicine valacyclovir (brand name “Valtrex”) at a dose of 500 mg twice a day to control
their HSV and were not taking strong anti-HIV medications. Results of the study showed
that the number of times genital HIV was detected over a period of time was reduced for
women taking valacyclovir. Because of the reduced frequency that genital HIV was
detected and the reduced frequency of genital herpes ulcers, it is hoped that transmission
of HIV would be reduced. However, this does not mean that HIV transmission would be
eliminated. IT DOES NOT MEAN THAT PEOPLE WITH HIV WHO TAKE THIS
MEDICATION CAN HAVE UNPROTECTED SEX. Interesting, taking this HSV-2
medication also considerably reduced plasma HIV (the amount of HIV in the blood) and
this continued to reduce over time. This implies that anyone with HSV-2/HIV co-
infection should consider treatment with anti-HSV medications. Many people living with
HIV have the HSV-2 virus. A simple blood test is available to detect antibodies to HSV-2
to determine if people have been exposed to HSV-2 and should consider a treatment
regime that includes anti-HSV medication.

~CM and John Falkenberg
Source: Nagot, N., et al. (2007). "Reduction of HIV-1 RNA Levels with Therapy to
Suppress Herpes Simplex Virus." The New England Journal of Medicine, 356;8.