MT 2 Re-Retake. Flashcards
The bluetongue virus is vectored by midges/ gnats.
T.
Bluetongue occurs only in Africa + Australia.
F.
Goats are more resistant to the blurtongue than sheep.
T.
In Europe vaccination of small Ru against blutongue is mandatory.
F.
The Infectious Eq arterittis + the AHorseS may have similar CS.
T.
AHorseS is spread by ticks.
F.
Acute form of AHorseS occurs mainly in zebras + Horses.
F.
SC oedema is a frequent symptom of subacute AHorseS.
T.
Rotaviruses are shed in the faeces in high titres.
T.
Rotaviruses predispose to E.coli infection in suckling piglets.
T.
Orthoreoviruses can cause tenosynovitis in Sus.
F.
Mammalian orthoreoviruses can caise penumoenteritis only in suckling animals.
F.
The main vectors of the tick- borne encephalitis virus are sylvatic mammalian sp.
F.
The louping ill was introduced to Australia to control rabbit population.
F.
Cytopathic + non- cytopathic biotypes of the BoVDV are known.
T.
The BoVDV typically damages endothelial-, epithelial- + lymphatic tissues.
T.
Bo neonatal pancytopenia ( BNP) is caused by BoVDV vaccine.
F.
Persistently infected cattle can maintain BoVDV in a farm.
T.
Bloody diarrhea is a CS of the mucosal disease.
T.
The border disease virus frequently causes encephalitis in ewes.
F.
CSFV can be transmitted by raw pork products.
T.
CSF can cause transplacental infection.
T.
CSF infection results in thrombocytopenia.
T.
In acute CSF, at the beginning obstipation, later diarrhea can be observed.
T.
CSF infection during the 1st 1/2 of pregnancy can lead to abortion.
T.
During necropsy of acute CSF cases, haemorrhages can be seen in the gastric mucosa.
T.
In uncomplicated cases of subacute CSF the normal size spleen can be observed.
T.
Wild boars play the main role in the maintenance of CSFV in endemic areas.
T.
All bunyaviruses are vectored by ticks.
F.
Akabane virus is zoonotic.
F.
Hantaviruses cause haemorrhagic fever in human.
T.
Nairobi sheep disease leads to abortion in the infected pregnant animals.
T.
The serotypes of influenza viruses is determined by their HA + NA proteins.
T.
Influenzaviruses are sensitive to drying out.
T.
The virulency of avian influenza is determined by the IV pathogeny index + mortality.
T.
The LPAI causes immunosuppression.
T.
Antigenic shift means the reassortment of the influenza virus genome segments.
T.
In Sus all influenza variants can be detected.
F.
Influenza causes persistent infection in Eq.
F.
In human inactivated vaccines are used for the immunisation against influenza.
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The ASFV can be inactivated by 2% NaOH within 1 day.
T.
The immune system cannot neutralize ASFV by Ab.
T.
The ASFV infects the Sus by air.
F.
The ASFV replicates the bone marrow.
T.
Several virulence variants of ASFV exist.
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In acute ASF cases the leading pathological finding is the black + enlarged ln.
T.
Stamping out of the infected herds is applied in the control of ASF.
T.
ASFV is shed in the urine of the infected animals.
F.
The FMDV is very sensitive to acidic pH.
T.
The FMDV can retain it’s infectivity in frozen milk for mnths.
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FMDV is serologically uniform.
F.
Cattle shed FMDV for a shorter time comparing to Sus.
F.
Dogs are susceptible to FMD.
T.
The 1º replication site of FMD is the bone marrow.
F.
FMD can be carried for a long time in the hoof tissue.
T.
For lab tests FMD samples should be submitted frozen.
F.
Talfan disease occurs in any age groups.
F.
Haemorrhages are typical PM lesions of Talfan disease.
F.
Paralysis is a CS of Talfan disease.
T.
There is widespread vaccination in Europe for prevention of Talfan disease.
F.
There is germinative spread in the case of avian encephalomyelitis.
T.
Typical CS of avian encephalitis occur up to 5 -6 wks of age.
T.
Tremor is a typical CS of avian encephalomyelitis.
T.
Haemorrhages are frequent PM lesions of avian encephalomyelitis.
F.
Avian nephritis is more frequent in H2Ofowl than in chicken.
F.
Avian nephritis is caused by astrovirus.
T.
CS of avian nephritis can be seen in the 1st 4 wks of life.
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Ureate deposition is a PM lesion of avian nephritis.
T.
VES causes mortality in piglets.
T.
Fel calcivirus can cause persisting infecteion in the tonsils.
T.
RHDV propagates in the liver of the infected animals.
T.
The Orthohepevirus A can be zoonotic.
T.
Both serotypes of Bursitis virus are pathogenic.
F.
The bursitis virus mostly causes germinative infection.
F.
CS of Gumboro disease can be seen in chickens younger than 8 days.
F.
Bursitis virus infection can reduce the efficacy of vaccinations.
T.
Togaviruses cause airborne infection.
F.
Rodents serve as reservoirs for Venezuelan Eq encephalomyelitis virus.
F.
Eq encephalomyelitis viruses can cause lameness in Eq.
T.
Eq encephalomyelitis can cause abortion in human.
T.
Reoviruses are sensitive to lipid solvents + detergents.
F.
Orbiviruses are mainly arboviruses.
T.
Bluetongue virus infects also Eq + dogs.
F.
Bluetongue virus is also foetopathic.
T.
Vaccination against bluetongue results serotype specific immunity.
T.
Bluetongue outbreaks mainly occur in summer + autumn.
T.
AHorseSickness is zoonotic.
F.
Zebras are ø susceptible to AHorseSV.
F.
Eq encephalosis is endemic in Africa.
T.
Rotaviruses infect only mammals.
F.
Rotaviruses are typically transmittes via fecal- oral route.
T.
Avian orthoreoviruses can cause inapparent infection in poultry.
T.
The louping ill is seen in cattle in Great Britain + Scandinavia.
F.
Serological cross reactions frequently occur between related flaviviruses.
T.
The TIck- borne encephalitis virus can be transmitted via consumption of raw milk.
T.
