Retroviruses Flashcards Preview

Small Animal Internal Medicine > Retroviruses > Flashcards

Flashcards in Retroviruses Deck (29):
1

True or False: Viruses with an envelope have poor survival outside the host.

TRUE

2

Are feline retroviruses RNA or DNA viruses?

RNA

3

Which subtypes of FIV predominate in North America?

A and B

4

Transmission of FIV is mainly through what?

Bite wounds

5

What are the 4 risk factors of FIV?

1. Older male

2. Outdoor access

3. History of fighting

4. FeLV infection

6

How long does the acute phase of FIV last?

2-6 months

7

During the acute phase of FIV, where does the virus replicate?

Lymphoid tissue

8

True or False: There is no viremia associated with the acute phase of FIV.

FALSE - there is a short viremic period.

9

During the acute phase of FIV, you may see a decrease in what cell lines?

1. CD4 T cells

2. CD8 T cells

3. Neutrophils

10

What is the most consistent gastrointestinal signs of FIV?

Stomatitis

11

True or False: During the subclinical phase of FIV it is difficult to recognize virus in the blood.

TRUE

12

What does the ELISA test for FIV test for?

Antibody

13

True or False: Because the FIV ELISA test tests antibody levels, false positives can be a problem.

TRUE

14

What are 2 scenerios when you might get a false positive with an FIV ELISA?

1. Kitten < 6 weeks (due to maternal antibodies)

2. FIV-vaccinated cat

15

In what 5 specific scenarios should you test for FIV?

1. New cat

2. Sick cat

3. Possible exposure to FIV

4. Blood donor cat

5. Prior to FIV vaccination

16

What do you do with a positive FIV cat < 6 months of age?

Retest again in 60 days and up until 6 months of age. You cannot consider that cat FIV positive until 6 months of age.

17

With an FIV infection, how would your globulins be affected?

Globulins would be increased

18

With an FIV infection, how would your urine sample be affected?

Proteinuria

19

Which clades is the FIV vaccine against?

A and D

20

True or False: There is no difference in mean survival time of FIV (+) and FIV (-) cats.

TRUE

21

What are the 3 subgroups of FeLV most commonly seen?

FeLV-A

FeLV-B

FeLV-C

22

Which subgroup of FeLV is infectious?

Only subgroup FeLV-A

23

What is the main mode of transmission of FeLV?

Licking and grooming/shared food and water bowels

24

What are the 3 risk factors of FeLV?

1. FIV infection

2. Access to outdoors

3. Contact with other cats

25

What are the 4 types of FeLV infections?

1. Abortive

2. Focal

3. Regressive

4. Progressive

26

Which of the 4 types of FeLV infections test negative on antigen tests?

Abortive & Focal

27

How are the abortive and focal FeLV infections different?

Abortive - a robust immune response clears the virus

Focal - proviral DNA remains present in some tissues

28

Which type of FeLV infection has active replication and shedding?

Progressive

29

Which type of FeLV infection is persistently antigen positive?

Progressive