African swine fever

Question 1

Several virulence variants of African Swine Fever Virus exist

Answer 1

T

Question 2

African swine fever is shed in the saliva of the infected animals

Answer 2

T

Question 3

ASF virus is shed in the urine of the infected animals

Answer 3

F

Question 4

Stamping out of the infected herds is applied in the control of African Swine Fever

Answer 4

T

Question 5

The leading clinical sign in African swine fever is excess salivation

Answer 5

F

Question 6

In acute African swine fever the leading pathological findings are the haemorrhages

Answer 6

T

Question 7

The African swine fever infects the swine per os

Answer 7

T

Question 8

The African swine fever virus genome codes only 2 proteins

Answer 8

F

Question 9

The African swine fever virus infects the swine by air

Answer 9

F

Question 10

In African swine fever cases of abortion are never observed

Answer 10

F

Question 11

The primary replication site of African swine fever virus is the oronasal mucosa

Answer 11

F

Question 12

The primary replication sites of African swine fever virus are the tonsils and lymph nodes

Answer 12

T

Question 13

In acute ASF cases the leading pathological finding is the black and enlarged lymph nodes

Answer 13

T

Question 14

In case of African swine fever enlarged spleen is observed during necropsy.

Answer 14

T

Question 15

The ASF virus replicates the bone marrow

Answer 15

T

Question 16

The tick species vectoring African swine fever are present in Portugal and Spain

Answer 16

T

Question 17

The ASF virus is serologically uniform but several genotypes exist

Answer 17

T

Question 18

In acute ASF we can observe high mortality in sows

Answer 18

T

Question 19

Vaccines are available in EU to be used in the control of African swine fever

Answer 19

F

Question 20

Vaccines are available to be used in the control of ASF

Answer 20

F

Question 21

The immune system cannot neutralize the ASF virus by antibodies

Answer 21

T

Question 22

The African swine fever virus can be disinfected by 2%NaOh within 1 day

Answer 22

T

Question 23

In Europe the main route of infection is the transmission of the African swine fever by ticks

Answer 23

F

Question 24

The African swine fever virus is highly resistant against the environmental conditions

Answer 24

T

Question 25

The African swine fever causes hemadsorption in cell cultures

Answer 25

T

Question 26

In the control of African swine fever thinning of the wild boar populations is helpful

Answer 26

T

Question 27

ASF is always a peracute disease

Answer 27

F

Question 28

ASF virus retains its infectivity for years in frozen meat

Answer 28

T

Question 29

The African swine fever virus replicated in lymphocytes

Answer 29

F

Question 30

Wild boars may be chronically infected with African swine fever virus

Answer 30

T

Question 31

Wild boars can carry African Swine Fever virus as chronically infected animals.

Answer 31

T

Question 32

African swine fever is endemic in Sardinia

Answer 32

T Serotype 1

Question 33

The resistance of the African swine fever virus is very low

Answer 33

F

Question 34

African swine fever is generally transmitted by mosquitoes

Answer 34

F

Question 35

African swine fever can cause disease in humans

Answer 35

F

Question 36

The African swine fever virus can be inactivated by irradiation

Answer 36

T

Question 37

The ASF causes hemadsorption in cell cultures

Answer 37

T

Question 38

African Swine Fever virus infects every cloven hoofed animal

Answer 38

F

Question 39

African Swine Fever does not occur in Europe.

Answer 39

F

Question 40

African Swine Fever is a resistant virus.

Answer 40

T

Question 41

Immunocomplexes are formed in the case of African Swine Fever.

Answer 41

T

Question 42

Only activated vaccines are used for the prevention of African Swine Fever

Answer 42

F

Question 43

Ticks can transmit African Swine Fever virus.

Answer 43

T

Question 44

In ASF cases abortion is never observed

Answer 44

F

Question 45

Swine and wild boars are susceptible to African Swine Fever virus.

Answer 45

T

Question 46

Warthogs can maintain African Swine Fever in endemic areas.

Answer 46

T

Question 47

Attenuated vaccines are used for the prevention of African swine fever.

Answer 47

F

Question 48

African Swine Fever virus has a low resistance.

Answer 48

F

Question 49

African Swine Fever virus can infect pigs and wild boars.

Answer 49

T

Question 50

The clinical signs of African Swine Fever are more severe in wild boars than in farmed pigs.

Answer 50

F

Question 51

There is a widespread vaccination in endemic areas to prevent African Swine Fever.

Answer 51

F

Question 52

In Europe the ticks are the most important means in the transmission of the ASF virus.

Answer 52

F

Question 53

In case of ASF infection viremia can last for months

Answer 53

T

Question 54

Infection by moderately virulent ASF virus results in high mortality of sows.

Answer 54

T

Question 55

The moderately virulent ASF virus does not cause fever.

Answer 55

F

Question 56

In case of infection by highly virulent ASF virus we can see skin necrosis as clinical sign

Answer 56

F

Question 57

In chronic cases of ASF spleen hyperplasia is a leading pathological lesion.

Answer 57

T

Question 58

African swine fever leads to abortion regardless of the virulence of the infecting virus.

Answer 58

T

Question 59

Wild boars may carry African Swine Fever virus as chronically infected animals

Answer 59

T

Question 60

The main tool against African Swine Fever is vaccination.

Answer 60

F

Question 61

Virulent strains of African Swine Fever virus cause an acute disease in domestic pigs.

Answer 61

T

Question 62

Acute African Swine Fever is characterized by haemorrhages.

Answer 62

T

Question 63

Vaccination is used for prevention of African Swine Fever.

Answer 63

F

Question 64

African Swine Fever cause skin lesions in swine

Answer 64

T

Question 65

African Swine Fever is caused by arbovirus.

Answer 65

F

Question 66

African Swine Fever is endemic in Central Europe.

Answer 66

F

Question 67

African Swine Fever virus infects pigs and ruminants.

Answer 67

F

Question 68

African Swine Fever virus can replicate in certain ticks.

Answer 68

T

Question 69

African Swine Fever is caused by any arbovirus.

Answer 69

F

Question 70

African Swine Fever is a notifiable disease.

Answer 70

T

Question 71

Virus neutralization is the most important tool for African Swine Fever diagnosis.

Answer 71

F

Question 72

Pregnant sows abort in case of African Swine Fever disease cases.

Answer 72

T

Question 73

The chronic form of African Swine Fever is similar to other immune complex disorders.

Answer 73

T

Question 74

African Swine Fever infection of humans leads to cold like symptoms.

Answer 74

F

Question 75

African Swine Fever virus may cause chronic infections in pigs.

Answer 75

T

Question 76

African Swine Fever may cause a chronic disease in wild boars.

Answer 76

T

Question 77

African swine fever virus can replicate in certain soft ticks.

Answer 77

T

Question 78

The clinical picture of chronic African Swine Fever is similar to dermatitis Nephritis/nephropathy

Answer 78

T

Question 79

African Swine Fever does not have any vaccination.

Answer 79

T

Question 80

The ASF virus can be detected by hemagglutination test

Answer 80

F

Question 81

The boutons in the intestines are characteristic pathological findings in case of ASF

Answer 81

F

Question 82

Several virulence variants of ASF virus exist

Answer 82

T