Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Virology > Bovine Viruses > Flashcards

Bovine Viruses Flashcards

1
Q

Foot and mouth disease (FMD) belongs to what family of viruses

A
  • picornaviridae - RNA naked
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

virus that causes vesicular mucosal lesions of ruminants and swine; what species does it not effect

A
  • foot and mouth

- horses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how dose foot and mouth disease cause abortion

A
  • by the fever
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

fist sign of foot and mouth disease in swine

A
  • lameness
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

this virus has 7 serotypes; how does this effect diagnosis and vaccination

A
  • foot and mouth
  • vaccination - serotype-specific
  • diagnosis - test for specific genome and antigens
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

main route of infection of foot and mouth disease

A
  • inhalation of droplets
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

can foot and mouth be spread before clinical signs are seen

A
  • yes; 24 hours before
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

which virus has recovery that correlates with appearance of antibodies, but immunity is short-lived

A
  • foot and mouth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

3 viruses that can present like foot and mouth and are therefore notifiable

A
  • vesicular stomatitis
  • swine vesicular disease
  • vesicular exanthemia of swine
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

once a diagnosis is confirmed (by state officials) for foot and mouth what is the next steps

A
  • determine area that must be quarantine

- cull infected, suspected and in contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

bovine leukemia (“leukosis”) belongs to what virus family

A
  • retroviridae
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

which virus has some material been found in human mammary tumors

A
  • bovine leukemia

- but not zoonotic!!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

most presentations and diagnosis of bovine leukemia

A
  • asymptomatic

- serology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

30% of cows infected with bovine leukemia will develop what

A
  • persistent lymphocytosis with no clinical signs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

few animals infected (4-8yr) with bovine leukemia will develop what

A
  • lymphoid tumors
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

lymphosarcomas of bovine leukemia present with what type of cells in the blood

A
  • non malignant
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

diagnosis of bovine leukemia

A
  • antibody ELISA
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

T/F bovine leukemia infects the entire herd

A
  • false - is a 1 cow disease

- horizontal transmission requires close and prolonged direct contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

malignant catarrhal fever virus family

A
  • herpesviridae

- herpesvirus 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

morbidity and mortality of malignant catarrhal fever

A
  • low morbidity

- high mortality

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

bilateral opthlamia is see in what virus

A
  • malignant catarrhal fever

- few survive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

3 epidemiological patterns of malignant catarrhal fever

A
  • cattle infected from subclinical wildebeest (calving time)
  • cattle in close contact with sheep (at lambing)
  • feedlot cattle in NA - minor epidemics
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

diagnosis of malignant catarrhal fever

A
  • history and clinical signs

- confirmation by virus isolation in calf thyroid cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

can malignant catarrhal fever move from cow to cow?

A
  • no; seem to be dead end
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

bovine viral diarrhea (BVD) belongs to what virus family

A
  • flaviviridae
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

morbidity and mortality rate of BVD

A
  • high morbidity

- high mortality (abortion)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

T/F BVD cannot occur in sheep, goats, swine

A
  • false - it can; also in deer and bison
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

postnatal infection of BVD in non-pregnant cattle clinical signs

A
  • fever and panleukopenia
  • drop milk yield
  • lesions in mouth (not vesicles)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

infection of BVD in cow less than 2 months pregnant

A
  • animal will be aborted

- NCP (noncytoplasmatic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

infection of BVD in cow between 2 and 4 months pregnant

A
  • immune system thinks virus is self

- persistent infection - will be born shedding virus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

infection of BVD in cow after 4 months pregnant

A
  • mature enough to know virus is not normal
  • may cause deformation (eyes and brain)
  • abortion is rare
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

PI infected calves with BVD appear normal and develop mucosal disease how (3 ways)

A
  • superinfection with homologous BVDV
  • mutation of NCP to CP
  • vaccination with MLV BVDV strain
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

T/F: you can test for antibodies in a PI BVD calf

A
  • false

- they do not have antibodies -> they do not seroconvert

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

life span if acute mucosal disease develops from BVD

A
  • 3-10 days

- if survives -> develops chronic mucosal disease

35
Q

life span if chronic mucosal disease develops from BVD

A
  • 18 months
36
Q

2 biotypes of BVD

A
  • cytopathic

- noncytopathogenic

37
Q

which biotype of BVD tends to stay in the GI and causes more lesions in adults

A
  • cytopathic
38
Q

which biotype of BVD crosses into fetus

A
  • noncytopathogenic
39
Q

is BVD easily transmitted

A
  • yes; easily between animals and herds
40
Q

which vaccines are used against BVD (2)

A
  • inactivated - in pregnant animals

- attenuated - used in rest of population

41
Q

virus family of parainfluenza 3 infection

A

paramyxoviridae

42
Q

viruses that may initiate shipping fever (3)

A
  • parainfluenza 3
  • bovine respiratory syncytial disease
  • infectious bovine rhinotracheitis
43
Q

how is parainfluenza 3 transmitted

A
  • aerosols

- fomites contaminated with nasal discharge

44
Q

parainfluenza 3 vaccine produces what type of protective antibodies

A
  • mucosal IgA
45
Q

parainfluenza 3 is a combo vaccine what what other diseases

A
  • IBR - infectious bovine rhinotracheitis (herpesvirus)
  • Adenovirus
  • BVD - bovine viral diarrhea (flaviviridae)
46
Q

virus family of bovine respiratory syncytial disease

A
  • paramyxoviridae
47
Q

morbidity and mortality of bovine respiratory syncytial disease

A
  • high morbidity

- low mortality

48
Q

what time of year is bovine respiratory syncytial disease seen

A
  • winter
49
Q

viral family of infectious bovine rhinotracheitis (IBR)

A
  • herpesviridae; herpesvirus 1
50
Q

morbidity and mortality of IBR

A
  • morbidity - 100%

- mortality - 10%

51
Q

transmission of IBR

A
  • slower
  • needs close contact
  • more common in feedlots
52
Q

T/F: there is a vaccination for IBR

A
  • true

- can tell difference between vaccinated and infected

53
Q

viral family of rotavirus

A
  • reoviridae
54
Q

virus also known as “white scours” or “milk scours”

A
  • rotavirus
55
Q

virus that has clinical signs of moderately depressed but continues to eat

A
  • rotavirus
56
Q

feces of animals infected with rotavirus

A
  • voluminous
  • soft to liquid
  • contain large amounts of mucus
57
Q

diagnosis of rotavirus

A
  • presumptive based on clinical presentation
58
Q

T/F: rotavirus can survive in environment for months

A
  • true
59
Q

when do you vaccinate for rotavirus

A
  • vaccinate mother when inactivated virus vaccine -> promotes high levels of maternal antibodies in colostrum and milk
60
Q

virus family of bovine coronavirus diarrhea

A
  • coronaviridae
61
Q

virus also known as winter dysentery

A
  • bovine coronavirus diarrhea
62
Q

T/F: bovine coronavirus diarrhea is zoonotic

A
  • true; can cause diarrhea in humans
63
Q

metabolism of what is affected in animals with bovine coronavirus diarrhea

A
  • glucose and lactose metabolism
64
Q

when should you vaccinate for bovine coronavirus diarrhea

A
  • vaccinate dam -> high levels of maternal antibodies in colostrum
65
Q

virus family of bovine papillomatosis

A
  • papoviridae
66
Q

clinical signs of bovine papillomatosis

A
  • warts - benign
67
Q

how does bovine papillomatosis enter the body

A
  • through abrasions
68
Q

how does bovine papillomatosis regress

A
  • due to appearance of neutralizing antibodies
69
Q

virus family of bovine mammillitis

A
  • herpesviridae; herpesvirus 2
70
Q

what are the 2 forms of bovine mammillitis

A
  • bovine mammillitis - localized in udder

- pseudo-lumpyskin - generalized

71
Q

differential diagnosis of bovine mammillitis (5)

A
  • warts
  • cowpox
  • pseudocowpox
  • vesicular stomatitis
  • FMD
72
Q

virus that has blister like lesions; has inflammation and hurts

A
  • bovine mammillitis
73
Q

T/F: milking machines are considered a vector for bovine mammillitis

A
  • false - basic cleaning disinfects
74
Q

T/F: milking machines are considered a vector for pseudocowpox

A
  • true due to imrproper disinfection
75
Q

virus family of pesudocowpox

A
  • poxviridae
76
Q

pathognomonic lesion of pesudocowpox

A
  • horseshoe scabs
77
Q

virus family of infectious pustular vulvovaginitis and balanoposthitis

A
  • herpesviridae; herpesvirus 1
78
Q

clinical signs of infectious pustular vulvovaginitis and balanoposthitis

A
  • pustules on genital areas

- pustules break into ulcerations

79
Q

how long does it take infectious pustular vulvovaginitis and balanoposthitis to be completely healed

A
  • 2 weeks
80
Q

T/F: semen can contain infectious pustular vulvovaginitis and balanoposthitis

A

true

81
Q

diagnosis of infectious pustular vulvovaginitis and balanoposthitis

A
  • antibody ELISA
82
Q

injection of corticosteroids can cause reactivation of what virus and can also be used to detect carrier bulls

A
  • infectious pustular vulvovaginitis and balanoposthitis
83
Q

viruses that cause abortion in cattle

A
  • BVD
  • IBR
  • Bluetongue

Virology (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions