Acute herpes labialis
Definition
Acute herpes labialis is a viral infection caused by the herpes simplex virus type 1 (HSV-1), resulting in cold sores or fever blisters primarily around the mouth. It is highly contagious and typically reactivates during periods of stress or immunosuppression.
5 Must Know Facts For Your Next Test
- Herpes simplex virus type 1 (HSV-1) is the primary cause of acute herpes labialis.
- Transmission occurs through direct contact with infected saliva, skin, or mucous membranes.
- Symptoms include painful blisters or sores around the lips and mouth, often preceded by itching or tingling sensations.
- Reactivation of the virus can be triggered by factors such as stress, illness, sunlight exposure, and hormonal changes.
- Antiviral medications like acyclovir can reduce the severity and duration of outbreaks.
Review Questions
- What virus causes acute herpes labialis?
- How is acute herpes labialis transmitted?
- List three potential triggers for the reactivation of HSV-1.
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Related terms
Herpes Simplex Virus Type 1 (HSV-1): A common virus that causes oral infections including acute herpes labialis.
Cold Sores: Blisters typically around the mouth caused by viral infection from HSV-1.
Antiviral Medications: Drugs such as acyclovir used to treat viral infections by inhibiting viral replication.
