GLOSSARY OF TERMS

Primary infection: Recently acquired infection with HSV-1 or HSV-2 with an absence of antibodies to either type on serological testing.

Non-primary infection: Recently acquired infection with a virus type in the presence of antibodies to the other virus type,

e.g. HSV-2 in a person with previous antibodies to HSV-1, but absence of antibodies to HSV-2 on serological testing.

First episode: First clinical episode of genital HSV-1 or HSV-2. May be a primary or non-primary or first recognised clinical expression of a previously acquired infection weeks, months or years before.

Recurrence: Previously acquired HSV-1 or HSV-2 infection with antibodies to the same type on serological testing.