Circovirus

Question 1

The reproduction of the circovirus continuous in the dividing cells

Answer 1

True

Question 2

The circovirus is too small so it’s a bad antigen

Answer 2

False

Question 3

The circovirus is a good antigen

Answer 3

True

Question 4

Circovirus infections are immune suppressive

Answer 4

True

Question 5

Circovirus can easily be cultured in different homologous cell lines

Answer 5

False

Question 6

Circoviruses can be cultured easily in many cell lines

Answer 6

False

Question 7

Resistance of circovirus is very low, in the environment they are inactivated within a day

Answer 7

False

Question 8

The resistance of Circoviruses is high, they remain infectious in the environment for several
months

Answer 8

True

Question 9

Causes generalized lymphoid depletion

Answer 9

True

Question 10

Only causes the depletion of B-lymphocytes

Answer 10

False

Question 11

Canine circoviruses are present worldwide

Answer 11

False

Question 12

Circovirus are very resistant viruses

Answer 12

True

Question 13

The circovirus has circular RNA in its genome

Answer 13

False

Question 14

Swine circovirus causes lesions in multiple organs and strong immunosuppression

Answer 14

True

Question 15

Porcine circovirus can be transmitted by mice and rats

Answer 15

True

Question 16

Porcine circovirus vaccines are available both for sows and for piglets

Answer 16

True

Question 17

Detection of PCV2’s DNA is enough for the correct diagnosis

Answer 17

False

Question 18

Four species of swine circovirus were described

Answer 18

True

Question 19

The porcine circovirus 2 is proven to be immunosuppressive

Answer 19

True

Question 20

PCV2 detection in foetal myocardium is pathognomic value

Answer 20

True

Question 21

Porcine circovirus replicates in the myocardium of the foetus

Answer 21

True

Question 22

In pigs the porcine circovirus 2 can cause BFD

Answer 22

False

Question 23

The porcine circovirus can replicate in the foetus

Answer 23

True

Question 24

The clinical signs, pathological and histopathological examination suggest PCV2 induced
disease

Answer 24

True

Question 25

PCV2 can cause respiratory signs

Answer 25

True

Question 26

The primer replication of PCV2 is in lymphoid tissues of the throat

Answer 26

True

Question 27

PCV2 infection does not always cause clinical signs

Answer 27

True

Question 28

Porcine circovirus 2 always causes clinical signs in pigs

Answer 28

False

Question 29

Porcine circovirus 2 always causes clinical signs in cattle

Answer 29

False

Question 30

There is no efficient vaccine against PCV2

Answer 30

False

Question 31

The porcine circovirus can replicate in the foetus

Answer 31

True

Question 32

Circovirus in pigs can be Subclinical.

Answer 32

True

Question 33

Porcine circoviruses are responsible for a variety of clinical conditions

Answer 33

True

Question 34

Porcine circoviruses cannot be responsible for reproductive disorders

Answer 34

False

Question 35

Porcine circoviruses are present worldwide

Answer 35

True

Question 36

Porcine circovirus can be transmitted by mice and rats

Answer 36

True

Question 37

Porcine circoviruses cause severe haemorrhagic diseases in pigs

Answer 37

True

Question 38

Porcine circoviruses are genetically and antigenically uniform

Answer 38

False

Question 39

Porcine circoviruses may cause a variety of diseases

Answer 39

True

Question 40

For prevention of Swine circovirus disease only general hygienic measures can be used

Answer 40

False

Question 41

Swine circovirus can cause retarded growth and strong immunosuppression

Answer 41

True

Question 42

Swine circovirus caused disease occurs worldwide, it is frequent

Answer 42

True

Question 43

For prevention of swine circovirus disease, inactivated vaccine is available

Answer 43

True

Question 44

Swine circovirus causes only respiratory signs

Answer 44

False

Question 45

Swine circovirus may be shed in excretions for several months after recovery

Answer 45

True

Question 46

For prevention of Porcine circovirus disease vaccines are available

Answer 46

True

Question 47

The incubation period of Porcine circovirus caused disease is about 2-4 weeks

Answer 47

True

Question 48

Incubation period of porcine circovirus disease is short, some days

Answer 48

False

Question 49

Porcine circovirus-2 causes clinical signs mainly after weaning

Answer 49

True

Question 50

Predisposing factors for Porcine Circovirus associated disease can be: Vaccines. The virus variant. Virus strain

Answer 50

True

Question 51

Predisposing factors for Porcine Circovirus associated disease can be Food management

Answer 51

False

Question 52

PCV2 can cause: Enteric disorders. Disorders in the nervous system. Respiratory disease. Reproductions disorders

Answer 52

True

Question 53

Porcine circovirus-1 may damage the foetus

Answer 53

False

Question 54

Porcine circoviruses cannot be responsible for reproductive disorders

Answer 54

False

Question 55

Porcine circoviruses replicate in the heart of the foetus

Answer 55

True

Question 56

Porcine circovirus may cause inapparent infections

Answer 56

True

Question 57

Circovirus can be responsible for the Porcine Respiratory Disease Complex

Answer 57

True

Question 58

Reproductive disorders caused by Porcine circoviruses are only significant in North America

Answer 58

False

Question 59

Circovirus cause skin lesions in swine

Answer 59

True

Question 60

A clinical sign of PMWS can be a progressive weight loss

Answer 60

True

Question 61

PMWS is a type 3 hypersensitivity

Answer 61

False

Question 62

PMWS is a type 4 hypersensitivity

Answer 62

False

Question 63

One of the most common pathological signs of PMWS is glomerulonephritis

Answer 63

False

Question 64

Typical pathological finding of PMWS is enlarged mesenteric lymph nodes

Answer 64

True

Question 65

Typical pathological finding of PMWS is pneumonia

Answer 65

True

Question 66

A clinical sign of PMWS can be haemorrhages in the skin

Answer 66

False

Question 67

In pigs the porcine circovirus 1 can cause PMWS

Answer 67

False

Question 68

In pigs the porcine circovirus 2 can cause PDNS

Answer 68

True

Question 69

One of the most common pathological signs of PDNS is glomerulonephritis

Answer 69

True

Question 70

PDNS is an allergic disease

Answer 70

False

Question 71

The appearance of PDNS is related to the good antigenicity of PCV2

Answer 71

True

Question 72

PDNS is a type III hypersensitivity

Answer 72

True

Question 73

PDNS is a type IV hypersensitivity

Answer 73

False

Question 74

PDNS may develop without porcine circovirus 2

Answer 74

True

Question 75

One of the most common clinical signs of PDNS is multifocal circular red skin disease

Answer 75

True

Question 76

Porcine dermatitis nephropathy can only be caused by circoviruses

Answer 76

False

Question 77

Porcine dermatitis and nephropathy syndrome are only caused by PCV-2

Answer 77

False

Question 78

PDNS disease is an immunocomplex disease

Answer 78

True

Question 79

PDNS is only caused by PCV-1

Answer 79

False

Question 80

PDNS does not occur in Hungary

Answer 80

False

Question 81

PDNS occurs primarily in the weeks following the selection/weaning

Answer 81

True

Question 82

PDNS is caused by both PCV-1 and PCV-2

Answer 82

False

Question 83

PDNS is not caused by PCV

Answer 83

False

Question 84

PDNS has been widespread in Hungary in Hungary since 1998

Answer 84

True

Question 85

PDNS is a rare infection causing clinical signs only in piglets before weaning

Answer 85

False

Question 86

PDNS is a frequent infection with clinical signs after weaning

Answer 86

True

Question 87

Prevention of PDNS is with live attenuated vaccines

Answer 87

False

Question 88

Regarding PDNS, general preventative rules and recently inactivated or vector vaccination can be used

Answer 88

True