herpes%20simplex%20virus%20infection
HERPES SIMPLEX VIRUS INFECTION
Primary herpes simplex virus (HSV) infection is first infection with either herpes simplex virus-1 (HSV-1) or herpes simplex virus-2 (HSV-2) in individuals who do not have antibodies to either HSV-1 or HSV-2.
First episode-non primary infection is infection with either HSV-1 or HSV-2 in individuals who have previously existing antibodies against HSV-1 or HSV-2 respectively.
Recurrent HSV infection results from reactivation of latent virus. It is usually brought about by triggering factors eg UV light, immunosuppression.
Orolabial HSV disease is mostly caused by HSV-1 that occurs most commonly in children <5 years of age. It is transmitted through close contact with individuals who have active viral shedding.
Genital HSV disease is caused by HSV-2 that is the usual cause of herpes genitalis. It typically occurs in adults and transmitted through sexual contact.

Definition

Primary Herpes Simplex Virus (HSV) Infection

  • 1st infection w/ either herpes simplex virus-1 (HSV-1) or herpes simplex virus-2 (HSV-2) in individuals who do not have antibodies to either HSV-1 or HSV-2

First Episode - Nonprimary Infection

  • Infection w/ either HSV-1 or HSV-2 in individuals who have previously existing antibodies against HSV-1 or HSV-2 respectively

Recurrent Herpes Simplex Virus (HSV) Infection

  • Results from reactivation of latent virus
  • Usually brought about by triggering factors (eg UV light, immunosuppression, trauma, stress, febrile illness)
  • Less severe & becomes less frequent w/ time
Editor's Recommendations
Most Read Articles
Yesterday
There appears to be no association between aortic pulse wave velocity, a measure of vascular stiffness, and migraine, as reported in a recent study.
29 Nov 2019
Metformin Extended Release 500 mg,750 mg, and 1000 mg
2 days ago
The dietary intake of gluten does not appear to be a risk factor for psoriasis, psoriatic arthritis or atopic dermatitis in women, reports a new study.
01 Dec 2019
Pneumonia is a common infection– affecting around 3,200 people inSingapore in 2016 – making it the thirdmost common cause of hospitalisation inthe country. Its common complications,especially with delayed or inappropriatetreatment, include bacteraemia andseptic shock, lung abscesses, pleuraleffusions, empyema, pleurisy, respiratoryfailure and renal failure.