L29 Herpes Flashcards
Herpes Simplex Virus
Family
Genome
Virion
Alphaherpesviridae
dsDNA
Enveloped
Herpes reproduction cycle length
Short
Rapid spread in culture
Herpes host range
variable
Herpes latency location
Capacity to establish latency in sensory ganglia
Herpes 1 vs 2
1: eyes, oral
2: genital
HSV-1 transmission
oral oral
oral genital
HSV 2 transmission
genital genital
oral genital
HSV incidence
1: 2/3
2: 1/5
HSV incubation period
2-14 days (4-5 usually)
HSV symptoms
What percentage show
flu like symptoms w/ lesions
only 1/3 show symptoms
Latency
Genome circularizes and stays as an episome
Herpes outbreak tiggers
sunburn
systemic infection
immune impairment
stress
What type of immune response is required for herpes?
Cell mediated
What happens when someone is unable to produce antibodies?
They can still handle herpes
How does herpes modulate immune response
Bind antibodies
Conter the effects of interferon
Herpes treatment
acyclovir
Wont eliminate latent infection
Cytomegalovirus
Family
Genome
Virion
Betaherpesvirus
dsDNA
Enveloped
CMV host range
restricted
Cmv reproductive cycle
Long
slow progression in cell culture
Epstein-Barr virus
Family
Genome
Virion
Gammaherpesvirus
dsDNA
nonenveloped
Epstein barr targets
T and B lymphocytes
CMV type of infection
Chronic persistant infection, not latent
CMV infected cells
Become enlarged
Epstein barr type of infection
lytic