HSV & HPV Flashcards
Definition of Herpes Simplex Virus (HSV)
- mucocutaneous infection of the mouth and lips caused by HSV
- Commonly seen on the lips of people but can occur anywhere in the mouth or perinasally
What is HSV commonly referred to as?
Cold sores
Fever blisters
Herpes labialis
Where does it commonly occur on the lips?
Vermillion border
What is HSV infection commonly associated with?
Increased risk of constitutional symptoms
i.e. fever, malaise, sore throat, myalgia, inability to eat, irritability, cervical adenopathy, and gingivostomatitis for 3-14 days
What are the two types of herpes?
HSV1 and HSV2
Causes of HSV?
- Contracted by touching infected saliva, mucous membranes, or skin
- highly contagious
- new outbreaks can be affected by illness, stress, fatigue
What is Stage 1 of HSV?
Primary infection
- virus enters through small cracks in skin or mucous membranes and replicates
- oral sores and other symptoms may develop
- may be asymptomatic
What is Stage 2 of HSV?
Latency
- from the infected site virus moves to the dorsal root ganglia
- reporduces usually without symptoms and becomes inactive
- reactivated by certain conditions
What is Stage 3 of HSV?
Recurrence
- Reactivated by certain emotional or physical stresses
i. e. stress, UV light, Fatigue, fever, hormones, immune depression, trauma
Signs and symptoms of HSV
INCUBATION period- 2-12 days between contact and appearance of symptoms (average is 4 days)
DURATION- Signs and symptoms will last 2-3 weeks
- pain, burning, tingling, and itching occurs at site before sore appears
- cluster of vesicles erupts and breaks down rapidly
- crusting of vesicles occurs a few days later
HSV of pharynx appearance
in exudative or ulcerative lesions of posterior pharynx or tonsillar pillars
Difficult to distinguish from strep pharyngitis
Possible DDX you need to R/O
Impetigo, so culture
Diagnosis of HSV
- Usually made clinically
- Viral culture
- throat culture
- HSV 1 and HSV2 serology
- Tzanck Smear
What do you see on a Tzanck smear for HSV?
Multinucleated giant cells
How do you treat HSV?
oral anti-viral
- tx when first feel prodrome