Term
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Definition
phage genes transcribed by host RNA pol
mRNA translated by host
phage DNA replicated |
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Term
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Definition
phage repressor protein is active
most phage genes are not expressed
site specific recombination occurs with host chromosome
phage DNA becomes part of host chromosome |
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Term
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Definition
picornaviridae
small
non-enveloped
+ strand virus
entero virus
icosahedral
can lead to muscle paralysis
fecal-oral |
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Term
|
Definition
polio spreads to nerve cells
causes paralysis of muscles innervated by affected cells
only happens in <1% of patients with polio |
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Term
|
Definition
retrovirus
targets t-helper cells
fuses with host cell cytoplasmic membrane
ss+
8000 bp
95 nm |
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Term
|
Definition
viral genomse is RNA
DNA copy is made, inserts into host chromosome
have envelope
released by budding |
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Term
|
Definition
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Term
|
Definition
dsDNA
200,000 bp
110 nm
enveloped
causes cold sores and blisters |
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Term
|
Definition
dsDNA
3000 bp
enveloped
42 nm
hepadnaviridiae
icosahedral
transmitted by blood transfusions, needles, and other bodily fluids
5000 die from liver cirrhosis
1000 die from liver cancer |
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Term
|
Definition
ss- RNA, segmented
17,000 bp
enveloped
100 nm
8 pieces of RNA inside a matrix
severe upper respiratory infection
damages mucosal epithelial tissue |
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Term
|
Definition
ssRNA+
6000 bp
30 nm
cause common cold |
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Term
|
Definition
ss+ RNA
14,000 bp
45 nm
German measles
togoviridiae
icosahedral
mild fever
rash of small red spots
can cross placental barrier |
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Term
|
Definition
red measles
caused by parmyxoviridae
-ssRNA
helical capsid
airborne
rash, Koplik spots (red spots with white centers in mouth)
fever, cough, conjuctivitis |
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Term
|
Definition
picornaviridae family
nonenveloped
fecal-oral
+ssRNA
jaundice, fatigue, fever, nausea, appetite loss
resolve in 4-6 weeks
inflammation of liver |
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Term
|
Definition
papovaviridae
causes genital warts
attacks growing cells
non-enveloped
circular dsDNA
requires host DNA pol
linked to cervical cancer |
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Term
|
Definition
bullet-shaped
rhaboviridae
infects CNS
long incubation
zoonosis
tropism-- nerve cells
dementia, fever, depression, drooling
RNA virus |
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Term
|
Definition
hemorrhagic fevr, often fatal
filoviridiae
-ssRNA
surrounded by tube of capsule proteins
80% of infected die |
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Term
|
Definition
hemorrhagic fever
mosquito borne |
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Term
|
Definition
associated with mucosal epithelial tissues of genital regions
can become latent |
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Term
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Definition
varicella zoster virus
herpesvirus family
spread by direct contact
tropism is respiratory epithelial tissues
can infect liver, spleen and skin and nerve ganglia
skin lesions shed the virus |
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Term
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Definition
infectious particles
seen in plants
lack a capsid |
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Term
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Definition
infectious particles
lack nucleic acid
regulate expression of certain genes
appear to be able to convert normal protein to abnormal shape |
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Term
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Definition
fecal-oral pathogen
causes viral diarrhea
infects and kills intestinal epithelial cells
fluids leak into intestinal lumen
segmented dsRNA
icosahedral, no envelope |
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