Arteriviruses

Question 1

Arterivirus, the virulence is highly variable

Answer 1

true

Question 2

1) The equine viral arteritis is caused by an arterivirus

Answer 2

true

Question 3

2) Serological tests can NOT be used for laboratory detection of equine viral arteritis

Answer 3

false

Question 4

3) Red blood cells can be used for laboratory detection of equine viral arteritis virus

Answer 4

false

Question 5

4) Nasal fluid can be used for laboratory detection of equine viral arteritis virus

Answer 5

true

Question 6

5) A semen sample can be used for laboratory detection of equine viral arteritis virus

Answer 6

true

Question 7

6) Equine arteritis virus is very resistant to physical damages

Answer 7

false

Question 8

7) Equine viral arteritis is usually asymptomatic

Answer 8

false, should be true

Question 9

8) In cases of equine viral arteritis, the rate of seroconverted animals increases with age

Answer 9

true

Question 10

9) The main target cells of equine viral arteritis are macrophages

Answer 10

true

Question 11

10) Equine Viral arteritis (EVA) virus can affect donkeys

Answer 11

true

Question 12

11) The persistence of EVA virus within one herd is usually caused by the stallions

Answer 12

true

Question 13

12) EVA is transmitted by sexual and aerogenic pathways

Answer 13

true

Question 14

13) EVA can cause persistent virus carrying

Answer 14

true

Question 15

14) Equine Viral Arteritis virus can infect by inhalation

Answer 15

true

Question 16

15) Vaccine against Equine Viral Arteritis is never used in Europe

Answer 16

false

Question 17

16) The Equine Viral Arteritis is caused by retrovirus

Answer 17

false

Question 18

17) The equine viral arteritis virus cannot damage the wall of blood vessels

Answer 18

false

Question 19

18) The equine viral arteritis virus rarely causes asymptomatic infection

Answer 19

false

Question 20

19) The equine viral arteritis virus always causes clinical symptoms

Answer 20

false

Question 21

20) EVA is spread by insect vectors

Answer 21

false

Question 22

21) Long term carrier of EVA

Answer 22

true

Question 23

22) Equine viral arteritis causes reproductive problems/impotence in stallions

Answer 23

true

Question 24

23) Acute equine viral arteritis is similar to Equine infectious anaemia

Answer 24

true

Question 25

24) Equine viral arteritis in mare is reactivated in pregnancy

Answer 25

false

Question 26

25) Equine viral arteritis, aborted embryos have degenerated liver

Answer 26

false

Question 27

26) Mares are frequently life-long carriers of the Equine arteritis virus

Answer 27

false

Question 28

27) Subcutaneous oedema is a frequent sign of equine viral arteritis.

Answer 28

true

Question 29

28) Pregnant mares usually abort in the acute phase of equine viral arteritis

Answer 29

true

Question 30

29) Equine viral arteritis is diagnosed by agarose-gel immunodiffusion (Coggins test).

Answer 30

false

Question 31

30) The Equine arteritis virus may cause abortion in pregnant mares

Answer 31

true

Question 32

31) Vaccination of colts before puberty can prevent the development of EAV-carrier status.

Answer 32

true

Question 33

32) Stallions may be long-term carriers of the Equine arteritis virus

Answer 33

true

Question 34

33) Conjunctivitis and subcutaneous oedema are possible signs of equine viral arteritis.

Answer 34

true

Question 35

34) Equine viral arteritis virus can infect through nasal route.

Answer 35

true

Question 36

35) Equine viral arteritis virus can infect per os

Answer 36

true

Question 37

36) Equine viral arteritis virus can infect through venereal way

Answer 37

true

Question 38

37) Equine viral arteritis virus can infect only by arthropods

Answer 38

false

Question 39

38) Equine arteritis virus is a uniform virus without serotypes, subtypes etc

Answer 39

true

Question 40

39) Aerogenic infection can happen in the case of equine arteritis virus.

Answer 40

true

Question 41

40) Equine arteritis virus is shed in the semen

Answer 41

true

Question 42

41) Equine arteritis virus can cause abortion

Answer 42

true

Question 43

42) Lameness due to inflammatory joints is the most typical sign of Equine infectious arteritis

Answer 43

false

Question 44

43) Equine infectious arteritis is a notifiable disease; therefore vaccinations are forbidden

Answer 44

false

Question 45

44) After equine viral arteritis virus infection, mortality rate is low.

Answer 45

true

Question 46

45) Equine infectious arteritis is a notifiable disease

Answer 46

true

Question 47

46) The main target of Equine viral arteritis virus is macrophages

Answer 47

true

Question 48

47) Equine infectious arteritis is stenoxen viruses

Answer 48

true

Question 49

48) Equine viral arteritis can be controlled in part by removing long-term carriers.

Answer 49

true

Question 50

1) PRRS is caused by an arterivirus

Answer 50

true

Question 51

2) PRRS is caused by a coronavirus

Answer 51

false

Question 52

3) The clinical signs of PRRS can be abortion like that of SMEDI

Answer 52

true

Question 53

4) Isolation of PRRS in cell culture can be easily performed in any laboratory

Answer 53

false

Question 54

5) PRRS has only highly pathogenic variants

Answer 54

false

Question 55

6) Respiratory signs of PRRS occur just in sows

Answer 55

false

Question 56

7) PRRS virus replicates in macrophages

Answer 56

true

Question 57

8) PRRS virus replicates in T-lymphocytes

Answer 57

false

Question 58

9) The pathological signs of PRRS is typical because the lymph nodes are never enlarged

Answer 58

false

Question 59

10) PRRS virus affects the respiratory system in young piglets

Answer 59

true

Question 60

11) PRRS cause digestive sign in adult

Answer 60

false

Question 61

12) PRRS has 2 phases

Answer 61

true

Question 62

target cells of PRRSV are alveolar epithelial cells

Answer 62

false

Question 63

14) PRRS can only be isolated in porcine kidney cells

Answer 63

false

Question 64

15) PRRS causes immune suppression in prolonged cases

Answer 64

false

Question 65

16) Attenuated and inactivated vaccines are available against PRRS

Answer 65

true

Question 66

17) PRRS virus causes severe intestinal problems in adult pigs

Answer 66

false

Question 67

18) PRRS is characterized by respiratory disease in adult pigs

Answer 67

false

Question 68

19) PRRSV attacks the active macrophages

Answer 68

true

Question 69

20) For PRRS prevention we can get a very good immunization with inactivated vaccines.

Answer 69

false

Question 70

21) PRRS: reproductive and respiratory problems and others with other virulence

Answer 70

true

Question 71

22) Maternal immunity protects only short time against PRRS.

Answer 71

true

Question 72

23) Porcine reproductive and respiratory virus (PRRSV) can cause abortion only in the advanced stage of pregnancy (over 90 days).

Answer 72

false

Question 73

24) Only inactivated vaccines can be used for the prevention against PRRSV

Answer 73

false

Question 74

25) Porcine reproductive and respiratory virus (PRRSV) propagates in lymphatic cells.

Answer 74

true

Question 75

26) PRRSV infection may influence the reproductive performance of boars.

Answer 75

true

Question 76

27) Porcine reproductive and respiratory virus (PRRSV) is a zoonotic agent.

Answer 76

false

Question 77

28) Porcine parvoviruses and PRRSV may cause similar disease in sows

Answer 77

true

Question 78

29) Porcine reproductive and respiratory vines (PRRSV) does not cause clinical signs in boars

Answer 78

false

Question 79

30) Inactivated vaccines alone cannot induce protective immunity against PRRSV.

Answer 79

true

Question 80

31) Boars can transmit porcine reproductive and respiratory syndrome virus in the semen

Answer 80

true

Question 81

32) Porcine reproductive and respiratory syndrome virus cannot cause abortion, only infertility of the sows

Answer 81

false

Question 82

33) There are no vaccines for the prevention of Porcine reproductive and respiratory syndrome.

Answer 82

false

Question 83

34) The blue ear disease is caused by dog coronavirus

Answer 83

false

Question 84

35) The blue ear disease is caused by FIP

Answer 84

false

Question 85

36) The blue ear disease is caused by chicken coronavirus

Answer 85

false

Question 86

37) The blue ear disease is caused by PRRS

Answer 86

true

Question 87

38) Does PRRS virus have 3 genotypes

Answer 87

false

Question 88

39) Oedema can be a sign of PRRS

Answer 88

true

Question 89

40) PRRS is deadly in adult animals

Answer 89

false

Question 90

41) The Porcine reproductive and respiratory syndrome (PRRS) is only present in North- America

Answer 90

false

Question 91

42) The PRRS virus may cause reproductive problems in boars

Answer 91

true

Question 92

43) PRRS: cyanosis is one clinical symptom

Answer 92

true