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Flashcards in Random Exam 2 Questions Deck (81)
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1

T/F: Infectious laryngotracheitis infects turkeys

False

2

T/F: Foals infected with EHV-1 present with interstitial pneumonia systemic disease and high case fatality rate 

True

Equine Abortion Virus

3

T/F: Most EHV-1 abortions usually occur between 3-5 months of gestation in mares 

False

Occur in last trimester (between 8th & 10th month)

4

What is the incubation period for pseudorabies in swine?

~30 hours

5

T/F: Pseudorabies in adult pigs is characterized by intense pruritis, ganglioneuritis, and high mortality rate 

False

Pigs don't get pruritus with pseudorabies, only secondary hosts

6

T/F: Valtrex cannot be used to treat a herpesvirus infection caused by a herpesvirus with mutation in its thymidine kinase gene

True

7

T/F: Mortality in chickens presenting with infectious laryngotracheitis is usually due to occlusion of the trachea by a caseous plug.

True

8

T/F: A characteristic of infectious bovine rhinotracheitis is that the severity of the respiratory form is largely determined by the extent of secondary bacterial infection.

True

9

T/F: The hemadsorption-inhibition assay is always carried out using virus infected cell culture.

True

10

T/F: Keratitis describes inflammation of the keratin layer of the epidermis

False

Inflammation of the cornea

11

T/F: Papillomavirus infections are characterized by proliferative growth of infected cells.

True

12

T/F: Two forms of fowlpox have been described in chickens; a cutaneous form and a diphtheritic form

True

13

T/F: Newborn puppies infected with canine parvovirus may manifest myocarditis and cerebellar hypoplasia 

False

No cerebellar hypoplasia

14

T/F: Fowlpox is mechanically transmitted by mosquitoes and lice

True

15

T/F: Azidothymidine [AZT], an antiviral drug, inhibits replication of feline immunodeficiency virus by inactivating the viral enzyme that cleaves polyproteins into functional proteins. 

True

16

T/F: Porcine parvovirus infection in pigs is a persistent infection that results in continuous contamination of the environment

True

17

T/F: Infectious bovine rhinotracheitis is also referred to as “red nose”

True

18

T/F: Hemorrhagic disease of puppies is also known as “fading puppy syndrome”

True

19

T/F: Mortality in the wet form of fowlpox is due to asphyxiation brought on by occlusion of the larynx

True

20

T/F: Milker’s nodule is a condition observed in persons infected with the virus that causes pseudorabies

False

Pseudocowpox, not pseudorabies

21

T/F: African swine fever is exotic in the United States

True

22

T/F: Alphaherpesviruses multiply optimally at low body temperature, establish latent infections in nerve ganglia, and infected cells show cytomegaly

False

no cytomegaly

23

T/F: Poxviruses that belong to the same genus usually show antigenic cross-reactivity.

True

24

T/F: Canine parvovirus diarrhea results from virus replication in the mature enterocytes of the intestinal tract 

False

Immature enterocytes

25

T/F: In contrast to parvoviruses that infect other domestic species, porcine parvovirus tends to cause persistent infections with chronic shedding of the virus

True

26

T/F: In North America, sheep are the main reservoirs in the transmission of malignant catarrhal fever

True

27

T/F: A carrier animal sheds virus only intermittently 

False

Could be continuous or intermittent

28

T/F: Papillomavirus infection of the skin begins with virus multiplication in the keratinized layer of the epidermis

True

29

T/F: Type I and II interferons enhance cellular expression of MHC class I proteins.

True

30

T/F: Viruses are readily demonstrated using bright-field light microscopy

False