Midterm 1 RETAKE Flashcards
Latent infection can be diagnosed by detection of Ab.
F.
Mortality shows the number of dead animals compared with the diseased ones.
F.
Monitoring is a routine collection of data on a certain disease.
T.
In the case of screening healthy + infected/ diseased are differentiated + recorded.
T.
ELISA can be used for the detection of certain agents.
T.
Only results of lab tests with 100% specificity + sensitivity can be accepted.
F.
Only eggs from the same herd are allowed to be hatched in the same hatching machine.
T.
All- in- all- out principle means that during disinfection the animals have to be driven out of the stable.
F.
The age of animals does ø influence the efficacy of vaccines.
F.
Live vaccines always contain avirulent strains.
F.
Strains in marker vaccines can be differentiated from field strains.
T.
DIVA principle means differentiation of infected + vaccinated animals.
T.
Generation shift method is ø used anymore, because of the risk of infection of newborn animals.
F.
Selection ( test + remove) method is mainly used in small herds with low level of infection.
T.
Selection ( test + remove) method can be combined with vaccination.
T.
Embryo transfer from infected into disease free dam is a way of eradication of certain diseases.
T.
PDNS is characterized by type II hypersensitivity.
F.
Porcine circoviruses are responsible for a variety of clinical cond.
T.
Porcine circovirus 2 replicates in the myocardium of fetus.
T.
Porcine circoviruses cannot be responsible for reproductive disorders.
F.
CIA virus is transmitted both horizontally + vertically.
T.
Avian circovirus infections cause high mortality.
F.
Beak + feather disease lesions are sometimes obvious only after moulting.
T.
Inactivated vaccines are used against pigeon circovirus infections.
F.
Porcine HoKoviruses are only present in USA.
F.
PPV-1 is endemic in most Sus herds.
T.
PPV-1 is transmitted through the fecal- oral route.
T.
PPV-1 vaccinations start at/ after 6 mnths of age.
T.
Aleutian mink disease is characterized by type 1 hypersensitivity.
F.
Aleutian mink disease virus cannot infect ferrets.
F.
Aleutian mink disease virus induces enteritis in older minks.
F.
Attenuated vaccines are used against Aleutian mink disease.
F.
Derzsy’s disease is caused by parvovirus.
T.
The virus of Derzsy disease is transmitted vertically.
T.
Hemorrhagic nephritis + enteritis of geese is caused by parvovirus.
F.
Mastadenoviruses infect only mammalians.
T.
Infectious canine hepatitis virus spreads mainly by oral infection.
T.
Infectious canine hepatitis virus is sp specific ( stenoxenic).
F.
Infectious canine hepatitis virus frequently causes permanent blindness ( blue eye).
F.
Canine laryngotracheitis can cause high mortality in kennels.
F.
Inclusion body hepatitis is characterized by cytoplasmic unclusion bodies in the liver.
F.
Hepatitis- hydropericardium is caused by a siadenovirus.
F.
Hemorrhagic enteritis of turkeys causes characteristic spleen lesions.
T.
Gammaherpesvirus can cause latent infection in the neurons.
F.
Alphaherpesviruses can be reactivated from latency by immunosuppression.
T.
The acute phase of an alphaherpes viral infection is always followed by latent infection.
F.
When latent herpesviral infection is reactivated, ø infective virions are produced.
F.
Discriminating ELISA distinguishes infected animals from those vaccinated by any kind of vaccines.
F.
IBoR can spread via the olfactory n. to the brain.
T.
IBoR causes mainly respiratory disease among calves.
T.
IBoR causes endemic infection in cattle stock.
T.
Herpesmamillitis can cause pseudo lumpy skin disease.
T.
MCF is sp specific ( stenoxenic).
F.
MCF is a sheep disease.
T.
MCF is caused by OV herpesvirus 2 ( OHV-2) in Europe.
T.
Aujeszky’s disease causes meningo- encephalitis in sows.
F.
Aujeszky’s disease causes meningo- encephalitis in piglets.
T.
Aujeszky’s disease causes meningo- encephalitis in Car.
T.
Aujeszky’s disease causes meningo-encephalitis in Ru.
T.
Eq rhinopneumonitis virus cause lesions in the CNS of foetus.
F.
Eq coital exanthema can infect also humans ( zoonosis).
T.
Canine herpesvirus multiplies best at 33- 35ºC.
T.
Neural form of MD causes latent infection in the neurons.
F.
ORF, sheep pox + Goat pox viruses belong to the Capripoxvirus genus.
F.
Lesions of lumpy skin disease appear mainly on the udder + muzzle of cattle.
F.
Poxviruses cause Cowdry-A type nuclea inclusion bodies in the cell culture.
F.
Poxviruses induce proliferative lesions ( pocks) inoculated to chorioallantoic membrane.
T.
Cowpox virus can infect several other sp, + it is also zoonotic.
T.
Sus pox virus can infect several other sp, + it is also zoonotic.
F.
Sheep pox virus can infect several other sp, + it is also zoonotic.
F.
Pseudo- cowpox virus can also infect humans.
T.
Sheep pox virus is spread mainly by arthropod vectors.
F.
Lumpy skin disease virus is spread mainly by arthorpod vector.
T.
ORF virus is spread mainly by arthropod vectors.
F.
Sus pox virus is spread mainly by arthropod vectors.
T.
Lumpy skin disease is endemic in Africa.
T.
Lumpy skin disease virus can’t be detected by PCR.
F.
Lumpy skin disease is a mainly vector borne disease, causing high mortality.
F.
Myxomatosis is a mainly vector borne disease, causing high mortality.
T.
Papillomavirus can occur in Eq.
T.
