Herpes Simplex

Infection with herpes simplex virus (HSV) is one of the most common infections in the world. There are two types of HSV—herpes simplex virus 1 and herpes simplex virus 2—that cause oral and genital herpes.

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More Herpes Simplex

Space Travel Is Reactivating Herpes in Astronauts—Here's What That Means for You
An astronaut's anxiety may trigger an outbreak, a new NASA study says—but your daily routine could too.
5 Conditions You Might Confuse for Genital Herpes
Other infections can cause herpes-like symptoms. Here's what to watch for.