Herpes


Herpes
A family of viruses. Herpes also refers to infection with one of the human herpesviruses, especially herpes simplex types 1 and 2. Herpes simplex type 1, also known as human herpesvirus 1 (HHV-1), causes cold sores and fever blisters in the mouth and around it. Here is a depiction of a typical fever blister on the lip caused by HHV-1: {{}}Herpes simplex type 2, also known as human herpesvirus 1 (HHV-1), causes genital herpes, a sexually transmitted disease (STD). Genital herpes is characterized by sores in the genital area. Both herpes simplex types 1 and 2 are capable of causing systemic disease including encephalitis (infection of the brain) in someone who is immunodeficient. The treatment of infection with herpes simplex infections is by topical or oral anti-viral medication.
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An inflammatory skin disease caused by h. simplex virus or varicella-zoster virus; an eruption of groups of deep-seated vesicles on erythematous bases. SYN: serpigo (2). [G. h., a spreading skin eruption, shingles, fr. herpo, to creep]
- h. catarrhalis SYN: h. simplex.
- h. corneae SYN: herpetic keratitis.
- h. digitalis h. simplex infection of the finger.
- h. facialis SYN: h. simplex.
- h. febrilis SYN: h. simplex.
- h. generalisatus generalized h. simplex virus infection.
- h. genitalis, genital h. h. simplex infection on the genitals, most commonly h. simplex-2 virus.
- h. gestationis a polymorphous, bullous eruption, more common on the extremities and abdomen than on the upper trunk, with the appearance of pemphigoid or dermatitis herpetiformis; beginning in the second or third trimester, flaring about the time of delivery and subsequently resolving; usually recurrent during subsequent pregnancy. Linear C3 is shown in the epidermal basement membrane by direct immunofluorescence. Not caused by viral infection.
- h. gladiatorum h. simplex infection associated with trauma to cutaneous tissue.
- h. labialis SYN: h. simplex.
- neonatal h. h. simplex virus type 1 or 2 infection transmitted from the mother to the newborn infant, often during passage through an infected birth canal; severity varies from mild to fatal generalized infection, the latter especially with primary maternal genital h..
- h. progenitalis genital h. infection caused by h. simplex virus.
- h. simplex a variety of infections caused by herpesvirus types 1 and 2; type 1 infections are marked most commonly by the eruption of one or more groups of vesicles on the vermilion border of the lips or at the external nares, type 2 by such lesions on the genitalia; both types often are recrudescent and reappear during other febrile illnesses or even physiologic states such as menstruation. The viruses frequently become latent and may not be expressed for years. SYN: h. catarrhalis, h. facialis, h. febrilis, h. labialis, Simplexvirus.
- traumatic h. h. simplex infection at the site of trauma or of a burn, sometimes accompanied by temperature elevation and malaise.
- h. whitlow h. simplex inflammation at base of fingernail.
- h. zoster an infection caused by a herpesvirus (varicella-zoster virus), characterized by an eruption of groups of vesicles on one side of the body following the course of a nerve due to inflammation of ganglia and dorsal nerve roots resulting from activation of the virus, which in many instances has remained latent for years following a primary chickenpox infection; the condition is self-limited but may be accompanied by or followed by severe postherpetic pain. SEE ALSO: varicella. SYN: zona (2) [TA], shingles, zoster.
- h. zoster ophthalmicus a herpetic involvement of the ophthalmic branch of the trigeminal nerve, which may lead to corneal ulceration.
- h. zoster oticus a painful varicella virus infection presenting with a vesicular eruption on the pinna, with or without facial nerve paralysis. SYN: geniculate zoster, Ramsay Hunt syndrome (2).
- h. zoster varicellosus h. zoster associated with disseminated varicelliform lesions.

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her·pes 'hər-(.)pēz n any of several inflammatory diseases of the skin caused by herpesviruses and characterized by clusters of vesicles esp HERPES SIMPLEX

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n.
inflammation of the skin or mucous membranes that is caused by herpesvirus and characterized by collections of small blisters. There are two types of herpes simplex virus (HSV): type I causes the common cold sore, usually present on or around the lips; type II is mainly associated with genital herpes and is sexually transmitted. However, types I and II can both cause either genital herpes or cold sores, depending on the site of initial infection. HSV blisters are contagious through skin-to-skin contact and are recurrent in some people. HSV can also affect the conjunctiva (see also dendritic ulcer).
Herpes zoster (shingles) is caused by the varicella-zoster virus, which also causes chickenpox. Following an attack of chickenpox, the virus lays dormant in the dorsal root ganglia of the spinal cord. Later, under one of a number of influences, the virus migrates down the sensory nerve to affect one or more dermatome on the skin in a band, causing the characteristic shingles rash. One side of the face or an eye (ophthalmic zoster) may be involved. Shingles may be chronically painful (post-herpetic neuralgia), especially in the elderly. See also Ramsay Hunt syndrome.
Treatment of all forms of herpes is with an appropriate preparation of aciclovir or related antiviral drugs; shingles may require potent analgesics.

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her·pes (hurґpēz) [L., from Gr. herpēs a spreading cutaneous eruption, from herpein to creep] any inflammatory skin disease caused by a herpesvirus and characterized by the formation of clusters of small vesicles. When used alone, the term may refer to h. simplex or to h. zoster.

Medical dictionary. 2011.

Look at other dictionaries:

  • HERPÈS — W. Griesinger, en 1857, désigna sous le vocable d’Herpes febrilis la dermatose que nous connaissons aujourd’hui. En 1912, W. Grüter reconnut son caractère infectieux en la transmettant à la cornée du lapin et en la reportant de l’œil de cet… …   Encyclopédie Universelle

  • HERPES — HERPES. Содержание: Herpes zoster...................682 Herpes simplex..................688 Herpes febrills..................691 Herpes (от греч. herpo ползаю), с точки зрения морфологии дерматозы с острым и циклическим течением,… …   Большая медицинская энциклопедия

  • herpes — HÉRPES, herpesuri, s.n. Boală de piele virotică cu caracter recidivant, care se manifestă prin apariţia, de obicei în jurul buzelor, al nasului sau al organelor genitale, a unor grupuri de băşicuţe pline cu lichid. – Din fr. herpès, lat. herpes.… …   Dicționar Român

  • herpes — o herpe (plural herpes) sustantivo masculino 1. Área: medicina Erupción cutánea con dolor y picazón causada por un virus. herpes facial. herpes genital. herpes labial …   Diccionario Salamanca de la Lengua Española

  • herpes — m. dermat. Afección inflamatoria de la piel que produce unas pequeñas vesículas semitransparentes rodeadas de una aureola de color rojizo. Medical Dictionary. 2011. herpes …   Diccionario médico

  • herpes — hèrpes m DEFINICIJA pat. virusno oboljenje, ob. u obliku mjehurića na mjestu gdje sluznica prelazi u kožu; jaglina, kosopasica, perutac, pljuskavica SINTAGMA herpes febrilis pat. virusna infekcija što se manifestira izbijanjem skupine mjehurića,… …   Hrvatski jezični portal

  • herpes — (Del lat. herpes, y este del gr. ἕρπης). 1. amb. Med. Erupción que aparece en puntos aislados de la piel, por lo común crónica y de muy distintas formas, acompañada de comezón o escozor. 2. Med. herpes zóster. herpes zóster. amb. Med. Enfermedad… …   Diccionario de la lengua española

  • herpes — [hʉr′pēz΄] n. [L < Gr herpēs, lit., a creeping, herpes < herpein, to creep: see SERPENT] any of several acute inflammatory diseases, esp. herpes simplex, caused by various herpesviruses and characterized by the eruption of small blisters on …   English World dictionary

  • herpes — / ɛrpes/ s.m. [dal lat. herpes ētis, gr. hérpès ētos serpente ]. (med.) [affezione cutanea di origine virale] ▶◀ erpete, Ⓖ (fam.) febbre, Ⓖ (pop.) fuoco di sant Antonio …   Enciclopedia Italiana

  • herpes — ‘Enfermedad eruptiva de la piel’. Procede del latín herpes y hoy se emplea exclusivamente con el género masculino etimológico: «El herpes genital es una de las enfermedades de transmisión sexual más contagiosas» (Mundo [Esp.] 13.2.97). Es raro y… …   Diccionario panhispánico de dudas

  • herpes — late 14c., inflammatory, spreading skin condition (used of shingles, gangrene, etc.), from L. herpes a spreading skin eruption, from Gk. herpes, the name for the disease shingles, lit. creeping, from herpein to creep (cognate with L. serpere to… …   Etymology dictionary