Crabs and Herpes

Crabs noun - Infestation of the pubic hair by crab lice.

Herpes and crabs are semantically related In some cases you can use "Herpes" instead a noun "Crabs".

Herpes noun - Viral diseases causing eruptions of the skin or mucous membrane.

Crabs and herpes are semantically related in disease given through sexual relations topic. You can use "Crabs" instead a noun "Herpes", if it concerns topics such as disease communicable through sex.