They've taken out two proteins that are essential for the virus to replicate efficiently. Why isn't there a vaccine yet?
Download the NBC News app for breaking news and alerts Antiviral treatments can reduce outbreaks of genital herpes, but they aren't a cure. The virus replicates poorly and apparently doesn't cause lifelong infection.
Sexual Health Herpes virus infects billions of people worldwide. It can create problems if it enters the nervous system. Herpes infections can lead to recurring, often painful, blisters.
About half a billion people ages 15 to 49 have genital herpes infections, which are mostly caused by herpes simplex virus type 2, which can raise the risk of HIV. HSV-1 is usually spread by kissing, but it can also be transmitted to the genital area through oral sex. A vaccine that would protect against both strains of herpes has been a challenge, because the virus has been very good at evading the immune system, said Charles Rinaldo, professor and chair of the speciak of infectious diseases and microbiology at the University of Pittsburgh Graduate School of Public Health.
Intwo-thirds of the world's population under 50 — speciwl 3. A vaccine to prevent herpes infections could also have an impact on slowing the spread of HIV, according to a WHO report. Those would be quite safe, but in most cases they have not protected well.
As many as million people worldwide have genital HSV-1 infections. Herpes simplex viruses can cause cold sores and genital herpes.
While the COVID pandemic has led to an unprecedented race to develop a vaccine to protect against the coronavirus, researchers have been trying to come up with a vaccine to prevent herpes for at least four decades.