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45 Cards in this Set
- Front
- Back
PERCH are ___ sense ____ Viruses |
Positive, RNA |
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what viruses make up the PERCH group? |
polio ECHO Rhino Coxsackie Hep. A |
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polio causes what type of paralysis? |
flaccid |
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Who postulated the existence of viruses |
Dmitri Ivanoski |
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Develped the electron microscope that showed viruses |
Ernst Ruska |
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No cell wall, no nucleus, no ribosome, DNA or RNA |
viruses |
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Ability to cause disease referrs to an orgaisms |
pathogenicity |
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Ability to penetrate the defenses of the host |
ivasiveness |
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ability to cause serious disease |
virulence |
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ability to change surface antigenst to avoid detection |
antigenic shift |
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hospital acquired infection |
nosocomial |
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part of the normal flora |
commensal |
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ability of two dissimilar living together |
symbiosis |
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both organisms need each other to function |
synergism |
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one organism benefits while causing harm to the other |
parasite |
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both organisms benefit one another |
mutualism |
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host agent and environment |
disease triangle (agent, host, environment) |
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chemicals, heat, irradiation and antiviral medication are ways to control _______ of an organism |
growth |
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viral RNA can be directly incorporated into the host cell proteins |
+ sense |
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viral RNA must first be converted to a + sense by an RNA polymerase |
- sense |
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All viruses are RNA except __ which are (pneumonic) |
7, HHHaPPPy to be DNA |
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what groups are DNA viruses? (7) |
herpes, hepa DNA, Human papilloma, adenoma, parvo, pox and polyoma |
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all DNA viruses are DS except ____ |
Parvo B19 |
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all DNA viruses are icosahedral in shape except ___ which is complex |
POX |
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what are the 3 envolped DNA viruses |
HEPA DNA, Pox, Herpes |
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what are the nake DNA viruses? |
HPV, Adenoma, polyoma |
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HPV is a _____ DNA virus |
naked |
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is polyoma an enveloped or naked DNA virus |
naked |
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an adenoma is a naked or enveloped virus |
naked |
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slapped cheek syndrome is cause by |
Parvo B19 |
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5th disease is aka |
slapped cheek syn or erythema infectiosum |
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erythema infectiosum is aka |
5th disease, slapped cheek syn |
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HPV is caused by what type |
type 16 and 18 |
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HPV causes what type of carcinoma |
cervical carcinoma |
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cervical carcinoma is cause by HPV ___ and ___ |
16, 18 |
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Human herpes virus is a _____ stranded (enveloped or naked), (DNA or RNA) virus |
double stranded, enveloped DNA virus |
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Herpes simplex 1 causes |
herpes labalis: crop of painful vesicles on lips |
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herpes labalis is caused by |
herpes simplex 1 |
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herpes labalis consists of |
painful vesicles on lips |
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Herpes genitalis consists of |
crop of painful vesicles on the vulva |
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HS 2 causes |
herpes genitalis |
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HHV 3 causes |
chicken pox and herpes zoster |
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HHV type 4 |
MONO and burkitt's lymphoma |
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HHV 5 |
cytomegalovirus infection of the brain (owl eye appearance) |
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HHV 8 |
kaposi sarcoma and molluscum contagiosum |