Exam 2: Skin and Wounds-- Viruses Flashcards
What are the three poxviruses that cause human diseases that are of our focus?
- Smallpox
- Monkeypox
- Molluscum contagiosum
What has pox lesions on face and body, and could cause possible blindness and sterility, and is often fatal?
Small pox
What pathogen causes the smallpox?
Smallpox virus
AKA variola virus
What does the variola virus cause?
Smallpox
What is the ONLY human disease eradicated worldwide?
smallpox
What is the number one category A Bioterrorist Threat?
Smallpox
How is smallpox transferred?
inhalation
What is the treatment of smallpox?
requires immediate vaccination
What are the three infections that can be treated with vaccines?
- smallpox
- tetenus
- rabies
What disease has characteristic pox lesions and has lymphadenopathy?
Monkeypox
lymphadenopathy is NOT in smallpox
What pathogen causes Monkeypox?
Monkeypox virus
What is reservoir for Monkeypox?
monkeys and rodents (mice, rats, squirrels, prairie dogs)
How is Monkeypox spread?
primarily inhalation
- or direct contact, including bodily fluids and lesions
T/F. Monkeypox is considered a Emerging Disease.
True
What manifests with raised, pearl-like, waxy papules typically on face, trunk, or external genitalia?
Molluscum Contagiosum
What pathogen causes Molluscum Contagiosum?
Molluscum Contagiosum virus
How is Molluscum Contagiosum transferred?
direct contact and fomites
What age is Molluscum Contagiosum MC in? What individuals?
children ages 1-10 years
sexually active inds, and immunocompromised inds
What are the three kinds of Herpes Infections that manifest with recurrent, painful, slow-spreading blisters/skin lesions?
- Herpes Labialis (oral herpes)
- Herpetic Whitlow (finger)
- Herpes Gladiatorum (anywhere)
Is Herpes a latent virus?
Yes, about 2/3 of patients will experience recurrences as result of activation of latent virus.
What are some reactivation triggers for a Herpes infection?
Immune suppression caused by:
- stress
- fever
- illness
- trauma
- sunlight
- menstruation
- disease
What pathogen causes Herpes, the old and new name?
HHV-1/HHV-2 (Human Herpesviruses 1 and 2)
aka Herpes simplex virus or HSV (old term)
What is the general rule of thumb (80-90% of the time) for the strain of Herpes that causes herpes “above the waist” and “below the waist”?
above–> HHV-1
below–> HHV-2
How does one contract Herpes virus?
close and direct contact with the active lesions
T/F. One can get ride of Herpes infections with antiviral medicaitons.
False– infs for adults are not life threatening, but are lifelong
antiviral medications help control it, but DO NOT CURE IT
What disease is characterized by recurrent, painful, slow spreading blisters on the face and mouth?
Herpes labialis (aka oral herpes, cold sores, fever blisters)
What virus causes Herpes labialis?
Mainly HHV-1
occasionally HHV-2
If a patients has Herpes labialis where will is most likely go latent?
trigeminal ganglion
“above the waist herpes”
What disease is characterized by recurrent, painful, slow-spreading blister on the finger? What strain MC causes this?
Herpetic Whitlow
Mainly HHV-1
occasionally HHV-2
If someone has latent HHV-1 in the brachial ganglia, where will it most likely manifest when it remanifests?
on the finger as Herpetic Whitlow
“above the waist herpes”