ASF Flashcards
Several virulence variants of African Swine Fever Virus exist
T
African swine fever is shed in the saliva of the infected animals
T
ASF virus is shed in the urine of the infected animals
F
Stamping out of the infected herds is applied in the control of African Swine Fever
T
The leading clinical sign in African swine fever is excess salivation
F
In acute African swine fever the leading pathological findings are the haemorrhages
T
The African swine fever infects the swine per os
T
The African swine fever virus genome codes only 2 proteins
F
50+ proteins
The African swine fever virus infects the swine by air
F
-per os and tick
In African swine fever cases of abortion are never observed
F
The primary replication site of African swine fever virus is the oronasal mucosa
F
The primary replication sites of African swine fever virus are the tonsils and lymph nodes
T
In acute ASF cases the leading pathological finding is the black and enlarged lymph nodes
T
In case of African swine fever enlarged spleen is observed during necropsy
T
The ASF virus replicates the bone marrow
T
The tick species vectoring African swine fever are present in Portugal and Spain
T
The ASF virus is serologically uniform but several genotypes exist
T
In acute ASF we can observe high mortality in sows
T
Vaccines are available in EU to be used in the control of African swine fever
F
Vaccines are available to be used in the control of ASF
F
The immune system cannot neutralize the ASF virus by antibodies
T
The African swine fever virus can be disinfected by 2%NaOh within 1 day
T
and by formaldehyde in 6 days
In Europe the main route of infection is the transmission of the African swine fever by ticks
F
The African swine fever virus is highly resistant against the environmental conditions
T
The African swine fever causes hemadsorption in cell cultures
T
In the control of African swine fever thinning of the wild boar populations is helpful
T
ASF is always a peracute disease
F
ASF virus retains its infectivity for years in frozen meat
T
The African swine fever virus replicated in lymphocytes
F
WBC except lymphocytes
Wild boars may be chronically infected with African swine fever virus
T
Wild boars can carry African Swine Fever virus as chronically infected animals
T
African swine fever is endemic in Sardinia
T
The resistance of the African swine fever virus is very low
F
African swine fever is generally transmitted by mosquitoes
F
African swine fever can cause disease in humans
F
The African swine fever virus can be inactivated by irradiation
T
African Swine Fever virus infects every cloven hoofed animal
F
African Swine Fever does not occur in Europe
F
African Swine Fever is a resistant virus
T
Immunocomplexes are formed in the case of African Swine Fever
T
Only activated vaccines are used for the prevention of African Swine Fever
F
Ticks can transmit African Swine Fever virus
T
In ASF cases abortion is never observed
F
Swine and wild boars are susceptible to African Swine Fever virus
T
Warthogs can maintain African Swine Fever in endemic areas
T
Attenuated vaccines are used for the prevention of African swine fever
F
African Swine Fever virus has a low resistance
F
African Swine Fever virus can infect pigs and wild boars
T
The clinical signs of African Swine Fever are more severe in wild boars than in farmed pigs
F
There is a widespread vaccination in endemic areas to prevent African Swine Fever
F
In Europe the ticks are the most important means in the transmission of the ASF virus
F
In case of ASF infection viremia can last for months
T
Infection by moderately virulent ASF virus results in high mortality of sows
T
The moderately virulent ASF virus does not cause fever
F
In case of infection by highly virulent ASF virus we can see skin necrosis as clinical sign
F
In chronic cases of ASF spleen hyperplasia is a leading pathological lesion
T
African swine fever leads to abortion regardless of the virulence of the infecting virus
T
peracute sudden death?
Wild boars may carry African Swine Fever virus as chronically infected animals
T
The main tool against African Swine Fever is vaccination
F
Virulent strains of African Swine Fever virus cause an acute disease in domestic pigs
T
Acute African Swine Fever is characterized by haemorrhages
T
Vaccination is used for prevention of African Swine Fever
F
African Swine Fever cause skin lesions in swine
T
African Swine Fever is caused by arbovirus
T
African Swine Fever is endemic in Central Europe
F
African Swine Fever virus infects pigs and ruminants
F
African Swine Fever virus can replicate in certain ticks
T
African Swine Fever is caused by any arbovirus.
F
African Swine Fever is a notifiable disease
T
Virus neutralization is the most important tool for African Swine Fever diagnosis
F
no virus neutralisation occurs
Pregnant sows abort in case of African Swine Fever disease cases
T
The chronic form of African Swine Fever is similar to other immune complex disorders
T
African Swine Fever infection of humans leads to cold like symptoms
F
African Swine Fever virus may cause chronic infections in pigs
T
African Swine Fever may cause a chronic disease in wild boars
T
African swine fever virus can replicate in certain soft ticks
T
The clinical picture of chronic African Swine Fever is similar to dermatitis Nephritis/nephropathy
T
African Swine Fever does not have any vaccination
T
The ASF virus can be detected by hemagglutination test
F
these are indirect antibody detecting assays - no virus neutralisation ipame
The boutons in the intestines are characteristic pathological findings in case of ASF
F
intestinal boutons and skin suffusions are CSF signs
Several virulence variants of ASF virus exist
T