Viral Pathogens of the reproductive organs Flashcards
Herpes Simplex Virus Family
Herpesviridae
The latency of HSV is associated with what cells?
Ganglion Cells or nerves
_______ allows access of HSV from the external environment to the cell body
Retrograde axonal transfer
Which subfamily of HSV has relatively rapid replication time and neuronal latency?
Alpha subfamily
Heparan sulfate is a component of _______
basement membranes and extracellular matrix
Above the hips: HSV-___
Below the hips: HSV-____
HSV-1
HSV-2
HSV infect and replicated in what cells?
muco-epithelial cells
HSV genome exists as ____ in host nucleus
episome
TRUE OR FALSE: There are antivirals for HSV in its latent state
False, since it is inside the nucleus
Anterograde Axonal Transport
Cell body to axon tip
Retrograde axonal transport
Axon tip to cell body
Immunity mechanisms for HSV
- Neutralizing antibodies
- Antibody-dependent cell cytotoxicity
- Cytotoxic/Killer T-cells
Immunity through evasion for HSV
- IE protein
- Apoptosis inhibition
Neonatal herpes is usually transmitted via delivery from mother with _______
HSV-2 Infection
What is the Tzanck test
intranuclear giant cells stained by Giemsa
stain or Papanicolaou method (Pap smear)
Diagnostic Tests for HSV
- Viral Culture
- Tzanck Test
- Antigen test
- HSV DNA PCR
- Antibody test
Viral culture of HSV is usually done for
for epidemiologic investigations
Treatment for HSV
- Acyclovir
- Foscarnet
- Valacyclovir
- Famciclovir
Family of HIV
Retroviridiae
Retroviridae has ____ which enables dsDNA to be produced from RNA template
Reverse transcriptase
Subclasses of Retroviridae and describe
- Oncoretroviruses: “tumor”, transforms cells
- Lentiviruses: “slow”, persists in clinically latent state
Susceptible Host cells of HIV
○ CD4+Tlymphocytes
○ Monocytes/macrophages
○ Langerhans cells (skin macrophages)
○ Dendritic cells
○ Microglia/glial cells (brain macrophages)
The absence of ____ means a natural immunity to HIV
CCR5
Definitive diagnosis of HIV
Western Blot