Picorna Flashcards

(60 cards)

0
Q

6 genera (ERHPAC)

A
Enterovirus
Rhinovirus
Hepatovirus
Parecho
Aphtho
Cardio
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1
Q

One of the first viruses to be identified

A

Foot and mouse disease virus

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2
Q

4 major groups of human pathogens

A

Entero
Rhino
Hepatovirus
Parecho

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3
Q

Most serious disease vy any enterovirus

A

Poliomyelitis

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4
Q

Genus of humen entero

A
Poliovirus (1-3)
Cox A 1-24
Cox B 1-6
Echo 1-33
Entero 68-78
Entero 79- 101
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5
Q

Most rhinovirus can br recovered only in human cells at what temp?

A

33C

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6
Q

Originally classified as enterovirus 72

A

Hep A

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7
Q

Previously echo 22 and 23

A

Parechovirus

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8
Q

Encephalomypcarditis of rodents

A

Cardiovirus

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9
Q

Foot and mouth disease of cattle

A

Aptho

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10
Q

Contains genome linked protein

A

VPg

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11
Q

The 5’ longer end has a cloberleaf structure called?

A

IRES

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12
Q

Surface capsid proteins

A

VP1 and VP

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13
Q

Internal protein

A

VP4

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14
Q

Rhino or entero?
Acid stable
1.4 bouyancy
Stabilized by mgcl2

A

Entero
Rhino
Both

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15
Q

Enteroviruses are stable in ether , organic solvents since they do not contain ______ in their capsids

A

Lipids

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16
Q

Antibodies for entero appear the same when____

A

Symptoms appear

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17
Q

At what tissue does entero continue to replicate even high titers of antibody?

A

GIT

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18
Q

Polio viruses are inactivated by?

A

Heat and chlorine

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19
Q

Primary multiplication of polio

A

Oropharhngeal

Intestinal mucosa

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20
Q

Transmission and portal of entry?

A

Fecal oral

Mouth

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21
Q

Most common form of polio

A

Mild/abortive poliomyelitis

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22
Q

Present as stiffness in be back and neck

A

Nonparalytic/aseptic

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23
Q

Pm Flaccid paralysis?

A

Paralytic

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24
Muscle wasting
Progressive post PM muscle atrophy
25
Rarely used dx for polio
Serology!!
26
Used for who eradication of polio campaign
OPV
27
2 groups of coxsackie
A and B
28
Most frequent serotype of group a cox
A9
29
Diffuse myositis with necrosis of fibers of voluntary muscles (causing flaccid paralysis)
COx A
30
Diseases of cox A
Herpangina Hand foot and mouth disease Acute hemorrhagic conjunctivitis
31
Most commonly identified causative agebts of viral heart disease in humans
Cox B
32
Diseases of Cox B
Pleurodynia Myocarditis Perocarditis Severe generalized ds of infants
33
Known as epidemic myalgia
Pleurodynia
34
Known as vesicular pharyngitis
Herpangina
35
Aseptic meningitis iS caused by all types of
Group a | Most common 7 and 9
36
Abrupt onset of fever and sore throat, hyperemix pharynx vesicles on the post half of palate
Herpangina
37
Ulcerations in herpangina is found in the
Posterior pharyngeal wall
38
Vesicular rash on the palm and sole
Hand foot mouth ds
39
HfmD ia caused by?
Cox A16
40
Stabbing pain preceded by headache, anorexia, malaise; chest pain intensified by movt.... Caused by what?
Cox B
41
Usually cause by a24 and entero 70
Acute hemorr conjunctivitis
42
Enterovirus antigenically related to B5
Swine virus
43
Meaning of echo virus
Enteric Cytopathogenic Human Orphan
44
Method of choice for isolation of ECHO
Monkey kidney cell culture
45
Disease associated with ecHO
Aseptic meningitis Rashes Exanthem Infantile diarrhea
46
One of the main causes of cns disease
Entero 71
47
Isolated in px w broncholitis
Entero 68
48
Only cox B may cause
Diabetes/pancreatitis; | Pleurodynia
49
Only cox a may cause?
Herpangina | Conjunctivitis
50
Cox a, b and echo may cause?
Rash/ exanthem
51
Neonatal ds obly cause by?
B and echo
52
Consists of 6 types, others originally from echo; highly divergent with almost no protei identical to other picorna
Parecho
53
Common cold viruses
Rhino
54
Early symptom of colds
Chilliness
55
Cause foot and mouth ds
Apthovirus
56
Aphtho is acid labile at?
Ph below 7 (wow generAl talaga!)
57
Causes in encep and myocarditis in RODENTS
Cardio
58
Consists of 2 virus
Emcv (1 serotype) | Theilovirus
59
True or false? Emcv results in cns involvement but NO myocarditis
True!!