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Herpes Simplex Herpesviridae simplexvirus. Paulo de Mesa.  The Herpesviridae simplexvirus. Microorganism. Herpes Simplex Virus 1 (HSV1) -  Oral Herpes     Most common type of Herpes simplex virus

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Herpes Simplex Virus 1 (HSV1) - 

Oral Herpes

    Most common type of Herpes simplex virus

    Leads to sores inside the mouth, infection of the eye, or infection of the lining of the brain.

    Transmitted by contact with infected saliva

    Cross infection of type 1 on genitals can lead to oral herpes on the genitals

Herpes Simplex Virus 2 (HSV2) - 

Genital Herpes

    Usually sexually transmitted

    Cross-infection of type 2 on lips can lead to genital herpes on the mouth

Mode(s) of Transmission

    Sexual intercourse

    Contact with infected bodily fluids

prevalence demographics

    Herpes simplex is an extremely common virus that affects around 16.2% (about one out of every six) people in the United States that are age 14 to 49.  Herpes simplex is more common in women than in men in the United States and affects about one out of every five women within the US.  However, men are not vulnerable to herpes and are affected at a ratio of one to nine with one man being affected for every nine.  Males are also more likely to transmit the disease onto his female partner than a female is to her male partner. 

More numbers

  • 20-25% of adults have genital herpes
  • The number of HSV-2 infected people increases from approximately 6% between 12-19 years old to approximately 30% among 30 to 39 years. 
  • More African Americans (45.9%) have genital herpes than white Caucasian (17.6%)
  • Approximately 20% of the people with genital herpes never have symptoms.

Incubation Period


3-6 days

  • Blister/ulcers often on the mouth, lips, gums, or genitals
  • Enlarged lymph nodes in the neck or groin (usually only at the time of the initial infection)
  • Fever blisters
  • Fever
  • Genital lesions - there can be a burning/tingling sensation
  • Mouth sores
  • Sometimes shows no symptoms
  • Treatment
    • Mild cases do not need treatment and will heal on own
    • Extreme cases will need to take some antiviral medicines in order to get rid of the disease and keep it away
  • Complications
    • Eczema herpeticum (herpes across the skin)
    • Encephalitis
    • Infection of the eye
    • Infection of the trachea
    • Meningitis
    • Pneumonia (extremely rare, occurs mostly in babies)
    • Prolonged, severe infection in those with weak immune systems
  • Visual
  • Blood test for HSV antivirus
  • Viral culture from the lesion
prevention vaccine
  • Avoid direct contact with any open lesion
  • Avoid sexual contact with anyone with an open lesion
    • Also, practice safe sex behavior by using a condom while having sexual intercourse
  • If pregnant and have either HSV-1 or HSV-2, a cesarean delivery (C-Section) is recommended in order to minimize the risk of potentially giving your newborn herpes.

Normal host/Natural Reservoir

  • Humans contracted this virus by mutation
mortality rate
Mortality Rate

Extremely few

No one actually dies from herpes itself but the complications it can cause (such as pneumonia and meningitis) can be fatal and kill people.



(Google Health)


(Herpes Statistics)


(Center for Disease Control)