RNA viruses intro Flashcards

1
Q

influenza A, B, and C is ______. HA attaches to ___________

A

orthomyxo

upper respiratory tract

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2
Q

we get colds every year because the NA and HA _____. this is called ______ ______

A

mutate

antigenic drift

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3
Q

HIV is an example of RNA of the _______

A

retroviruses

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4
Q

in icosahedral RNA viruses, they can be ______ or ________.

A

naked or enveloped

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5
Q

______ viridae: polio, hepatitis A, Rhino virus, _______

A

PICORNA

enteroviruses

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6
Q

CALICI viridae: ________

A

Norwalk

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7
Q

REO viridae:

A

Rota virus

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8
Q

the forms of naked icosahedral RNA viruses are: ________, ________, and REO

A

PICORNA

CALICI

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9
Q

the two forms of enveloped RNA viruses are _______ and _______

A

TOGA and FLAVI

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10
Q

mosquito and rubivirus are the ________ viridae (enveloped)

A

TOGA

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11
Q

yellow fever, dengue, hepatitis C viruses are of the _______ viridae (enveloped)

A

FLAVI

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12
Q

TOGA and FLAVI are _______, icosahedral RNA viruses

A

naked

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13
Q

CORONA viridae are _________ colds

A

respiratory

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14
Q

BUNYA are the __________ and california encephalitis

A

hantavirus

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15
Q

ORTHOMYXO are ________ A, B, C

A

influenza

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16
Q

PARAMYXO are par-influenza, respiratory syncytial virus, ____, and _____

A

mumps and measles

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17
Q

the RHABDO is ________

A

rabies

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18
Q

FILO is ________ and marburg (acute hemorrhagic fever)

A

Ebola

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19
Q

ARENA viridae is lymphocytic ___________

A

choriomeningitis

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20
Q

largyngotracheobronchitis (aka ______) is from the _______ virus

A

parainfluenza

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21
Q

the complex coat RNA viruses consists of _______ (HIV)

A

RETRO

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22
Q

Influenza A, B, and C are _________ viridae

A

orthomyxo

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23
Q

influenza viruses A, B, and C have glycoproteins: _________ activity (HA), and ________ activity (NA)

A

hemagglutinin activity and neuraminidase activity

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24
Q

HA can attach to host sialic acid receptors (________________), but antibodies to HA will ______

A

upper respiratory tract

block

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25
Q

NA disrupts _____ barrier

A

mucin

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26
Q

in an ________ drift, mutation of NA, HA protect the virus from antibodies

A

antigenic

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27
Q

in an antigenic _______, there is complete change of NA and HA

A

shift

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28
Q

Parainfluenza, respiratory syncytial virus, mumps, measles are all __________viridae

A

paramyxo

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29
Q

the paramyxo viruses absorb into the _________ ______

A

respiratory tract

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30
Q

the parainfluenza virus is _______viriade. In adults it is an _____, flu-like illness. It causes ______ in children (laryngotracheobronchitis)

A

paramyxo
URI
croup

31
Q

parainfluenza virus causes a barking cough through the narrowed, upper _______

A

airways

32
Q

respiratory synctyial virus is _______. It causes _______ infections and contains F protein that causes formation of ___________ giant cells

A

paramyxo
respiratory
multinucleate (syncytial cells)

33
Q

Respiratoy syncytial virus lacks ____ and _____ glycoproteins

A

HA and NA

34
Q

the measles virus is ________. there is a ____ day incubation. Causes _____ spots and rash

A

paramyxo
10 day
Koplik

35
Q

arthropod borne viruses, toga, flavi, and bunya are all ________

A

arboviruses

36
Q

california encephalitis and rift valley fever are both _________ viridae

A

bunya

37
Q

yellow, dengue, and west nile are ______

A

flavi

38
Q

rubivirus, WEE, and EEE are _____ (western and easter encephalitis)

A

toga

39
Q

the _____ virus is a cause of a cold that is indistinguishable from the _________ common cold

A

corona

rhinovirus

40
Q

the corona virus is responsible for ______% of colds

A

15%

41
Q

SARS is a ________ virus

A

corona

42
Q

the corona virus can progress to severe _____ in 10-20% of cases

A

dyspnea

43
Q

rhinovirus is a ________ and is hand to hand spread

A

pircornaviridae

44
Q

poliovirus, coxsackie viruses A and B, echovirus, hepatitis A, new enteroviruses are all ______, which are picornaviridae

A

enterovirus

45
Q

enterovirus is excreted in _____ and spread by fecal-oral

A

feces

46
Q

poliovirus is an _______ of the _______

A

enterovirus

picornaviridae

47
Q

fecal-oral transmission and paralysis occurs in _______, which is a ______ (enterovirus)

A

poliovirus

picornaviridae

48
Q

Coxsackie viruses A and B (enterovirus) are _____.

A

picorn

49
Q

_____ is herpangina - a mild, self-limiting illness characterized by fever, sore throat, small red-based vesicles over the back of the throat

A

Coxsackie A

50
Q

Coxsackie B is ________. Fever, HA, pleuritic pain

A

pleurodynia

51
Q

Coxsackie A16 occurs in the ____, ____, and mouth 1-2 days after ______

A

hand
foot
herpangina

52
Q

________ A and B are associated with myocarditis/pericarditis

A

coxsackie

53
Q

echovirus and other _______ are _____viridae and have mild reactions, colds, rashes, aseptic meningitis

A

enteroviruses

picorn

54
Q

rotavirus and calciviridae are _______ viruses

A

diarrhea

55
Q

rabies is a _______viridae

A

rhabdo

56
Q

the _______ virus replicates at the wound bite, then over _____ to a _____ move up nerve axons to the CNS, causing fatal _____

A

rabies
weeks to a year
encephalitis

57
Q

DNA viruses are unlike RNA viruses be causes they __________________

A

cannot be translated directly into proteins

58
Q

every DNA virus has a + and - strand. the ______ is read to be transcribed into mRNA and the ______ is ignored

A

positive

negative

59
Q

PARVO, PAPOVA, and ADENO are all _________, icosahedral _____ viruses

A

naked

DNA

60
Q

HERPES and HEPADNA are ______, icosahedral, DNA viruses

A

enveloped

61
Q

erythema infectiousum is a ______, DNA

A

PARVO

62
Q

human papilloma virus is a ______, DNA

A

PAPOVA

63
Q

childhood respiratory cold is an ________, DNA

A

ADENO

64
Q

herpes simplex 1&2, varicella, cytomegaloviris, epstein-barr, and human herpesvirus 6 are ______________ icosahedral HERPES

A

enveloped

65
Q

hepatitis B is a ________

A

HEPADNA

66
Q

POX is ______ envelope. Small pox and molluscum contagious.

A

complex envelope

67
Q

viruses can be _______ or non-enveloped. Viral envelopes cover the protein ______, which has the RNA or DNA

A

enveloped

capside

68
Q

respiratory syncytial virus occurs in the ________ and _______ in infants and children. A ________ virus

A

winter and spring

paramyxo

69
Q

the _______ virus affects upper respiratory tract, also parotitis and orchitis.

A

mumps

70
Q

hepatitis B is a _____ virus, where the other 5 are _____ viruses

A

DNA

RNA

71
Q

the common cold is cause by _______, which is a ______

A

rhinovirus

picorn

72
Q

HSV 1,2, varicella, cytomegalovirus, and epstein-barr are all ______

A

herpes

73
Q

molluscum contagiousum is a ______ and is very common. Flesh colored bumps.

A

poxviridae