Human Herpesvirus 6 Flashcards
1
Q
What kind of virus?
A
Human B-lymphotropic virus
Roseolovirus
2
Q
What is the family?
A
Herpesvirus
3
Q
What do healthy individuals have?
A
Antibodies and HHV-6 in oral secretions
4
Q
What do immunosuppressed hematopoietic transplant recipients have?
A
HHV-6 encephalitis
5
Q
What are the clinical presentations?
A
- Exanthem subitum (roseola infantum)
- Abrupt onset high pyrexia, lymphadenopathy and convulsions
- Rubelliform rash except face (after fever disappears)
- Leucopaenia with relative lymphocytosis
6
Q
Who is it a mild disease in? What is it occasionally confused with?
A
- Children between 6 months and 3 years
- Rubella
7
Q
How long is the incubation period?
A
1-2 weeks
8
Q
HHV6 in what during pyrexia?
A
Serum and throat washings
9
Q
How to treat?
A
Spontaneous recovery
Antipyretic agents to control fever
