Human herpes viruses

Abstract

Each of the currently known eight herpes viruses can be associated with skin diseases, and depending on the type, certain lesions are typical. All herpes viruses remain in the host (latency) after acute infection, and can show recurrences despite cellular immune response. The possible diseases vary greatly; the type and severity of the disease depends on the age and immune status of the patient, and whether it is a primary or secondary infection. Trigger factors, such as fever, sunlight, trauma, or stress are possible causes of recurrences; the herpes simplex virus is a case in point. Various antivirals are available for treatment, and additional active substances have recently been developed, although these have not been licensed yet.