Exam 2 Clicker Questions Flashcards Preview

Virology > Exam 2 Clicker Questions > Flashcards

Flashcards in Exam 2 Clicker Questions Deck (56):
1

Vaccines produced by serial passage of viruses in heterologous hosts in a _ vaccine.

A. Live attentuated
B. Killed
C. Subunit

A. Live attentuated

2

Quarantine and isolation have the same meaning.

A. True
B. False

B. False

3

Autoclaving is primarily considered a method of _.

A. Disinfection
B. Sterilization
C. Antisepsis

B. Sterilization

4

Poxviruses are DNA viruses and therefore predominantly replicate in the nucleus of the host cell.

A. True
B. False

B. False

5

Enveloped poxviruses are very fragile in the environment.

A. True
B. False

B. False

6

Cowpox causes disease in which one of the following species?

A. Cow
B. Cats
C. Humans
D. All of the above

D. All of the above

7

Pseudocowpox is zoonotic.

A. True
B. False

A. True

8

Orf is caused by:

A. Orthopoxvirus
B. Parapoxvirus

B. Parapoxvirus

9

It is recommended not to use a vaccine on a farm that does not have a problem with Orf.

A. True
B. False

A. True

10

In endemic areas, pregnant ewes should not be vaccinated against Orf.

A. True
B. False

B. False

11

Sheeppox and goatpox cannot be distinguished from each other with serological techniques.

A. True
B. False

A. True

12

Sheeppox virus is commonly transmitted by:

A. Mechanical transmission by arthropods
B. Aerosol route
C. Skin injury
D. Direct contact with contaminated objects

B. Aerosol route

13

Sheeppox pox lesions appear only on the skin.

A. True
B. False

B. False

14

Which one of the following plays an important role in transmission of swinepox virus?

A. Ticks
B. Lice
C. Flies
D. Mosquitoes

B. Lice

15

The dry form of avipoxvirus is more fatal to birds than the wet form.

A. True
B. False

B. False

16

Which one of the following is not a common clinical lesion associated with Ulcerative Dermatisis of sheep?

A. Ulceration of vulva
B. Ulceration on leg
C. Ulcers on penis
D. Ulcers in the pharynx

D. Ulcers in the pharynx

17

What type of inclusion bodies would you encounter in host cells infected with poxvirus?

A. Negri bodies
B. Owls eye bodies
C. Guarnieri bodies

C. Guarnieri bodies

18

Which of the following poxviruses do not multiply in chicken embryo?

A. Orthopoxvirus
B. Parapoxvirus
C. Carpipoxvirus
D. Avipoxvirus

B. Parapoxvirus

19

Which one of the following viruses has trumpet like structures protruding out of the capsid?

A. Porcine circovirus type-1
B. Psittacine beak and feather disease
C. Chicken infectious anemia virus

C. Chicken infectious anemia virus

20

Which one of the following viruses cause Post-Weaning Multisystemic Wasting Syndrome in pigs

A. Porcine circovirus type 1
B. Porcine circovirus type 2

B. Porcine circovirus type 2

21

Which one of the following not a common site of replication of Chicken Infectious Anemia virus?

A. Bone marrow
B. Spleen
C. Thymus
D. Kidney

D. Kidney

22

Herpesviruses are stable in dry environment.

A. True
B. False

B. False

23

Alpha-herpesvirus replicate slowly.

A. True
B. False

B. False

24

How can you differentiate "pink eye" from typical ocular disease caused by Bovine Herpesvirus-1?

A. Corneal ulceration is usually not seen in BHV-1
B. Corneal edema is not seen in BHV-1
C. Conjunctivitis is usually not seen in BHV-1

A. Corneal ulceration is usually not seen in BHV-1

25

Pseudolumpy skin disease is caused by?

A. Capripoxvirus
B. Bovine Herpesvirus-1
C. Bovine Herpesvirus-2
D. Bovine Herpesvirus-3

C. Bovine Herpesvirus-2

26

Which one of the following species is considered as the primary host of pseudorabies?

A. Dogs
B. Cattle
C. Horses
D. Pigs

D. Pigs

27

In EHV-1 infection of pregnant mares majority of cases of abortion are usually seen during the first trimester of pregnancy.

A. True
B. False

B. False

28

In-utero infection with canine herpesvirus-1 usually results in birth of puppies that survive with neurological disorders.

A. True
B. False

B. False

29

Feline herpesvirus-1 has been associated with abortion in infected queen cats.

A. True
B. False

A. True

30

Mareks disease is caused by Gallid Herpesvirus-1.

A. True
B. False

B. False

31

Which one of the following species is considered as the common in apparent carriers of MCF virus?

A. Sheep
B. Cattle
C. Pig
D. Horse

A. Sheep

32

African Swine Fever is a notifiable disease.

A. True
B. False

A. True

33

ASF virus is the only known DNA arbovirus. Can you name the biological vectors

A. Lice
B. Flies
C. Ticks
D. Mosquitoes

C. Ticks

34

ASF has only been reported in African countries.

A. True
B. Fasle

B. False

35

Early in-utero infection in pregnant queens with Feline Panleukopenia Virus normally results in birth of kittens with cerebral hypoplasia.

A. True
B. False

B. False

36

Canine Parvovirus-1a is a major cause of hemorrhagic enteritis in dogs in the USA.

A. True
B. False

B. False

Normally Canine Parvovirus-2

37

Canine Parvovirus-2 replicates in the epithelial cells at the tip of intestinal villus, resulting in severe hemorrhagic enteritis.

A. True
B. False

B. False

38

Porcine Parvovirus is primarily associate with _ in pigs.

Reproductive Failure

39

Cutaneous papillomas in cattle is usually caused by?

A. Bovine papillomavirus 1
B. Bovine papillomavirus 2
C. Bovine papillomavirus 3
D. Bovine papillomavirus 4
E. Bovine papillomavirus 5

C. Bovine papillomavirus 3

40

Where would you commonly expect lesions in dogs infected with papillomavirus?

A. Legs
B. Lower abdomen
C. Oral cavity
D. Penis and vulva

C. Oral Cavity

41

Under EM, adenoviruses normally appear

A. Spherical
B. Cubical
C. Hexagonal
D. Pentagonal

C. Hexagonal

Also have fibers that emerge out of 12 pentons

42

Most adenoviruses usually have a wide host range.

A. True
B. False

B. False

43

Marble spleen disease is caused by?

A. Canine adenoviruses
B. Equine adenoviruses
C. Avian adenoviruses
D. Porcine adenoviruses

C. Avian adenoviruses

44

Acyclovir is a prodrug.

A. True
B. False

A. True

45

ZDV-triphosphate competes with dGTP for reverse transcriptase.

A. True
B. False

B. False

46

Polymerase chain reaction, or PCR, is a laboratory technique used to make multiple copies of a segment of DNA. The 3 sequential steps of a standard PCR cycle are:

A. Denaturation --> Annealing --> Extension
B. Extension --> Denaturation --> Annealing
C. Annealing --> Extension --> Denaturation

A. Denaturation --> Annealing --> Extension

47

Oseltamivir has been shown to reduce clinical signs in feline immunodeficiency virus (FIV, a retrovirus) positive cats.

A. True
B. False

B. False

48

Which one of the following outlines the true sequence of appearance of lesions following poxvirus infection?

A. Macule --> Papule --> Vesicle --> Pustule --> Scab --> Scar
B. Papule --> Vesicle --> Macule --> Pustule --> Scab --> Scar
C. Vesicle --> Papule --> Macule --> Pustule --> Scab --> Scar

A. Macule --> Papule --> Vesicle --> Pustule --> Scab --> Scar

49

Sheeppox is a systemic disease.

A. True
B. False

A. True

50

Which one of the following subtypes of bovine herpes virus 1 (BHV-1) is primarily associated with genital infections?

A. BHV-1.1
B. BHV-1.2
C. BHV-1.3
D. BHV-1.5

B. BHV-1.2

51

Equine herpes virus-1 can establish latency in:

A. Alveolar epithelium
B. Lymphocytes
C. Hepatocytes
D. Endothelial cells

B. Lymphocytes

52

The mild enzootic form of Infectious Laryngotracheitis (ILT) is more common in modern poultry industries.

A. True
B. False

A. True

53

Kittens with feline parvovirus infection are also susceptible to secondary bacterial infection.

A. True
B. False

A. True

54

Vaccines produced by serial (repeated) passage of viruses in cultured cells (tissue culture) is also known as ____.

A. Live-Attenuated virus vaccines
B. Inactivated whole virus vaccine
C. DNA recombinant vaccine
D. Purified viral protein vaccine

A. Live-Attenuated virus vaccines

55

While performing necropsy on a dead cow, you encounter zebra stripes-like severe longitudinal linear congestion of the mucosa of colon and erosions on the tongue and hard palate. Which one of the following viral diseases would you suspect?

A. Infectious bovine rhinotracheitis
B. Malignant Catarrhal Fever
C. Pseudorabies of cattle
D. Lumpy-Skin Disease

B. Malignant Catarrhal Fever

56

The study of virus evolution u sing virus genome sequence data is known as?

A. Metagenomic
B. Phylogenetics
C. PCR
D. Microarray

B. Phylogenetics