Brainscape's Knowledge GenomeTM

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


See full index

ANSC 453: Animal Disease & their control > Swine Diseases > Flashcards

Swine Diseases Flashcards

1
Q

What are the three pathogens included in the typical vaccines used in sows?

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

is parvovirus endemic or exotic in the US?

A

Endemic

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

PARVOVIRUS

What type of animal do we usually see the infection manifest as disease?

A

Nearly all females are infected before their 2nd pregnancy

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

PARVOVIRUS

how is parvovirus in swine transmitted? Can it be transmitted venereally?

A

Transmission via oronasal, transplacental and venereal routes

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

PARVOVIRUS

what does SMEDI stand for?

A

Stillbirth, mummification, embryonic, death, and infertility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does PRRS stand for? What are the two syndromes that are seen?

A

Porcine reproductive & respiratory syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

PORCINE REPRODUCTIVE & RESPIRATORY SYNDROME

what is the primary method of PRRS transmission?

A

Mainly infected pigs through contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

PORCINE REPRODUCTIVE & RESPIRATORY SYNDROME

can it be transmitted venereally?

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

PORCINE CRICOVIRUS 2

what two syndromes does it classically cause in pigs?

A
  1. Postweaning multisystemic wasting syndrome
  2. Porcine dermatitis & nephropathy syndrome
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

PORCINE CRICOVIRUS 2

how is it transmitted? Can it be transmitted venereally?

A
  • Transmission by direct contact, semen, fomites, biting insects, transplacentally
  • Can be transmitted venereally
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

PORCINE CRICOVIRUS 2

how does PCV2 cause immunosuppression?

A

Decreased number of lymphocytes

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

AFRICAN SWINE FEVER VIRUS

What kind of virus is it?

A

ASF virus
- large enveloped double-stranded DNA

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

AFRICAN SWINE FEVER VIRUS

is it endemic or exotic in the US?

A

exotic

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

AFRICAN SWINE FEVER VIRUS

what are its survivability characteristics?

A
  • Remain for long periods in blood, feces, and tissues
  • Months in contaminated pens
  • Over 140 days in some pork products
  • Years in frozen carcasses
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

AFRICAN SWINE FEVER VIRUS

what are some of the methods the virus has been introduced in outbreaks?

A
  • Uncooked/undercooked pork products fed to pigs
  • Paw pork waste/garbage at airport or shipping ports
  • Movement of infected wild boars
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

AFRICAN SWINE FEVER VIRUS

how it is transmitted between pigs?

A
  • Direct contact with infected pig
  • Ingestion of contaminated pork products
17
Q

AFRICAN SWINE FEVER VIRUS

what is main mammalian and arthropod reservoirs for this pathogen?

A

Fomites:
- Clothing, vehicles, equipment
- Environmental contamination
Vectors:
- Biological: bite from soft ticks (ornithodoros)
- Mechanical: other insects (mosquitos)

18
Q

AFRICAN SWINE FEVER VIRUS

what are the primary post mortem lesions?

A
  • Numerous hemorrhagic internal organs
  • Signs of bloody DI
  • Skin:
    o Discoloration
    o Hemorrhages
19
Q

AFRICAN SWINE FEVER VIRUS

how do we prevent transmission of ASF?

A
  • Isolate infected pigs
  • Prevent contact with feral or wild hogs
  • Quarantine newly acquired pigs for 30 days
20
Q

what is the viral agent that causes Hog Cholera?

A

Flaviviridae family
Pestivirus genus

21
Q

CLASSICAL SWINE FEVER

is it endemic or exotic in the US?

A

endemic

22
Q

What kind of virus is “Hog Chloera”? What related virus have discussed in ruminants?

A
  • Classical swine fever virus
  • Related to bovine virus diarrhea (BVD)
23
Q

CLASSICAL SWINE FEVER

what are survivability characteristics?

A

Environmentally stable:
- In tissues (meat)
- Cold temperatures

24
Q

CLASSICAL SWINE FEVER

are their other animal/arthropod reservoirs for this pathogen?

A

Fomites

25
Q

CLASSICAL SWINE FEVER

how is it transmitted between pigs. Can it be transmitted venereally?

A

HIGHLY CONTAGIOUS
- Blood, saliva, urine, feces
- Tissues of infected pigs
Transmistted via:
- Ingestion
- Direct contact with fomites
- Is not transmitted venereally
(Infected pigs are the only reservoir)

26
Q

CLASSICAL SWINE FEVER

what clinical signs are observed in the acute form?

A
  • Fever
  • Depression/anorexia
  • Coughing
  • Skin hyperemia & hemorrhages
  • Death
  • CNS signs
27
Q

CLASSICAL SWINE FEVER

what clinical signs are seen in the subacute form?

A
  • Lethargy
  • Intermittent fever
  • Constipation/DI
  • Acute relapse & death (crash and burn)
28
Q

CLASSICAL SWINE FEVER

how does the congenital form develop? What clinical signs are observed?

A
  • 1st trimester: repeat breeding, abortion
  • 2nd trimester: persistently infected piglets may be born
  • 3rd trimester: abortion, malformation, or birth of weak or dead piglets

Clinical signs:
- Weak “shaker” piglets
- Persistently infected
- Life-long viremia
- Will eventually die

29
Q

CLASSICAL SWINE FEVER

how do we prevent transmission of CSF?

A
  • Isolate infected animals
  • Quarantine newly introduced animals (minimum 30 days)
  • Keep health records on every animal
  • Clean and disinfect

ANSC 453: Animal Disease & their control (16 decks)

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