Chapter 24 Flashcards
DNA viruses are characterized on what type of _a__ they contain, the presence or absence of a __b__ , their _c___, and the host cells they _d__
a-dna
b-envelope
c-size
d-attack
__DNA and __DNA are the two types
dsDNA
ssDNA
Poxviruses herpesviruses, papillomaviruses, and Adenovirus are what tyoe of DNA?
dsDNA
Hepadnavirus is what type of DNA?
both dsDNA and ssDNA
Parvovirus is what type of DNA?
ssDNA
dsDNA have complex ___ and ___
capsids and envelopes
dsDNA is the second ____ virus
largest
Poxviruses hosts are
mammals
Cowpox and smallpox is a poxvirus that can infect humans. T/F?
true
Infection of poxviruses mainly through
inhalation
poxviruses are stable/unstable outside of hosts bodies?
unstable
smallpox commonly known as variola, infects ___ ___
internal organs
Herpesviruses have envelopes?
yes
Which is the most prevalent of the DNA viruses?
herpesviruses
HHV indicates a ___ virus?
herpesvirus
Human herpesvirus 1 is ___ the waist
human herpesvirus 2 is __ the waist
above
below
Whitlow can be caused by both HHV viruses? t/f?
true
HHV-3 AKA Varicella-Zoster Virus
causes which two diseases?
Varcicella and herpes zoster
varicella = ____ and herpes zoster= ______
chicken pox & shingles
Reyes syndrome cause is ____ and associated with treatment of diseases with ___
unknown
aspirin
Infectious malignant neoplasm of jaw
Primarily African boys with immune systems weakened by malaria
First cancer known to be caused by a virus is indicative of which virus? Oral Hairy Leukoplakis or Burkitt’s Lymphoma?
Burkitts
Precancerous change in mucous membrane of the tongue
Causation implicated
Patients with severely depressed cellular immunity: indiciative of which virus? Oral Hairy Leukoplakis or Burkitt’s Lymphoma?
Oral Hairy
Treatable cancer of B lymphocytes
Spreads from one lymph node to another lymph node
Causation implicated
Patients with poor immune systems is indicative of which virus? Hodgkins Lymphoma or Chronic Fatiqgue Syndrome?
Hodgkins
Burkitts, Oral Hairy, Hodgkins are all ___ viruses?
herpesviruses
Most americans over 3o have antibodies to HHV-___?
HHV 4
HHV-4 transmitted mainly through___
saliva
HHV5 is AKA CMV =____?
Cytomegalovirus
Over 50% of adults in US have this?
Cytomegalovirus (CMV)
CMV occurs largely through ?
sexual intercourse
HHV6 causes ____
roseola
HHV6 causes roseola which may be linked to ?
MS
HHV8 aka-
Rhadinovirus
Rhadinovirus HHV8 is associated with which disease? Pappiloma/ Kaposi’s Sarcoma
Karposi
Which type of virus has a small naked icosahedral capsid?
pappilomavirus
Pappilomavirus cause papillomas commonly known as ____
warts
warts linked to cancer?
yes
Papilloma infections are stable/unstable outside the body?
stable
Autoinoculation (of papillomavirus) spreads from one ____ to another on ____ _____
location
same person
naked polyhedral capsid with spikes belongs to ___viruses
adenoviruses
adenoviruses are one of many causitive agents of the __ ____
common cold
Adenoviruses spread via ____ _____
respiratory droplets
Are adenoviruses stable/unstable outside the body?
stable
adenoviruses cause ___ infections
respiratory
Hepadnaviruses composed of ___ DNA?
both ds and ss
hepadnaviruses have capsules?
have envelope?
yes
yes
which type of virus has a unique replication pattern?
hepadnaviruses
Only DNA virus that causes hepatitis?
Hep B
Parvoviruses are the only human _____ among ssDNA viruses
pathogen
Paroviruses capsid?
yes
Paroviruses envelope?
no
Paroviruses is the ___ of DNA viruses
smallest
B19 Virus infection is the primary (which tyoe of virus) of humans
parvovirus
B19 Virus is the causitve agent for Erythema infectiosum? T/F?
true