Midterm 2 part 2 chapter II Flashcards
Rabbit haemorrhagic disease is characterized by rapid progression.
True
Australia is free of rabbit haemorrhagic disease.
False
There are no vaccines available against rabbit haemorrhagic disease.
False
Up to 100% of susceptible rabbits may be killed by rabbit haemorrhagic disease.
True
The incubation time of rabbit haemorrhagic disease is usually over 3 weeks.
False
The Rabbit Hemorrhagic Disease is a chronic illness with low morbidity.
False
Encephalitis is a frequent sign of the rabbit haemorrhagic disease
False
Feline caliciviruses cause hemorrhagic enteritis.
True
Cats may carry and shed feline calicivirus for several months or years.
True
Some variants of feline calicivirus may escape vaccine induced protection.
True
Feline calicivirus infection may cause pyrexia and lameness
True
Erosions on the oral mucosa are frequent signs of feline calicivirus infection.
True
Feline calicivirus has a very characteristic biphasic fever
True
Rotaviruses mainly cause respiratory disease in older animals.
False
Rotaviruses typically cause respiratory disease in 3-6 month old calves.
False
Rotavirus is species specific
False
Bluetongue disease is present only in tropical and sub-tropical countries.
False
Wild birds are the natural reservoir host of the Bluetongue virus.
False
In utero Bluetongue virus infection may result in immunotolerance.
True
The most severe clinical manifestation of Bluetongue disease is usually seen in goats.
False
Bluetongue is an Orbivirus.
True
Bluetongue primarily spreads with blood sucking insects
True
Bluetongue replicates in endothelial cells of blood vessels.
True
The causative agent of Bluetongue multiplies in endothelium.
True
Bluetongue has 24 known serotypes.
False
Bluetongue is an enteral disease of turkeys.
False
Bluetongue causes symptoms mostly in sheep and goat.
False
Bluetongue is not present in Europe.
False
Bluetongue causes skin signs in bovine
True
Bluetongue also infects pigs.
False
Bluetongue infects all hooved animals.
False
No long-term carrier stage is observed in Bluetongue virus infections.
False
´Bluetongue virus is typically vectored by ticks.
False
Sheep are less sensitive to Bluetongue than swine.
False
Ruminants and swine are the most important hosts of the Bluetongue virus.
False
Lameness is one of the clinical signs of Bluetongue disease in sheep
True
Rodents are the main reservoirs of the Bluetongue virus.
False
Bluetongue is present only in tropical areas.
False
Vaccination against Bluetongue provides serotype-specific protection.
True
Serological cross protection exists between 25 known serotypes of Bluetongue virus.
False
No long-term carrier stage is observed in Bluetongue infections.
False
Epizootic hemorrhage fever is a Bluetongue-like disease of wild ruminants in America.
True
Ibarki disease is a Bluetongue-like disease in Asia and in America.
True
The serotype 8 strain of the bluetongue virus, which emerged in Western Europe, does not cause clinical signs in cattle
False
Epizootic haemorrhagic disease was described only in Australia so far
False
African Horse Sickness is a frequent disease, distributed worldwide.
False
Respiratory signs are the most frequent symptoms in acute African Horse Sickness.
True
The differential diagnosis of African Horse Sickness and Tetanus is rather complicated.
False
African Horse Sickness is spread primarily by “small mosquitos”.
True
Carriers for African Horse Sickness are zebras and donkeys.
True
African Horse Sickness is not present in Europe today
True
African Horse Sickness is caused by an arbovirus.
True
African Horse Sickness is caused by Orbivirus.
True
The most characteristic post mortem lesion in African Horse Sickness is hemorrhages and edema.
True
Reservoir for African Horse Sickness is zebras and donkeys.
False
African Horse Sickness is presented mainly per-acutely in donkeys.
False
African Horse Sickness virus only infect horses
False
Zebras are more resistant to African horse sickness than horses.
True
Immunized horses may develop a chronic febrile form of the African horse sickness.
True
Horses are more susceptible than zebra in African Horse Sickness.
True
Hemorrhagic meningoencephalitis is the most frequent sign of the African Horse Sickness.
False
The African Horse Sickness virus may infect dogs too.
True
The African Horse Sickness and the Infectious Equine Arteritis may have similar clinical signs.
True
African horse sickness is a world-wide distributed and frequent disease.
False
The subacute form of the African horse sickness is mainly characterized by edematisation and cardiac dysfunction
True
Midges are the main vectors of the Equine encephalosis virus
True
Avian orthoreoviruses may cause necrotic foci in the visceral organs of birds.
True
Avian orthoreoviruses infect only via inhalation and parenterally.
False
Avian orthoreoviruses only infect via PO infections.
False
All Avian orthoreoviruses can spread germinatively.
True
Helicopter disease causes feather problems.
True
Rotaviruses frequently cause tenosynovitis in birds.
False
Avian orthoreoviruses usually cause disease in adult birds.
False
Avian orthoreovirus may cause necrotic foci in the visceral organs of birds.
True
Orthoreovirus infections cause immunosuppression in birds.
True
Tenosynovitis is a frequent sign of Avian Orthoreovirus
True
Orthoreovirus mainly infects younger animals.
True
Orthoreovirus causes respiratory and GI disease.
True
Orthoreovirus causes tenosynovitis in piglets.
False
Tenosynovitis is caused by only one Orthoreovirus
False
Orthoreoviruses frequently cause tenosynovitis of horses
False
Infectious bursal disease causes severe illness, mainly in waterfowl.
False
Infectious bursal disease is especially sensitive to detergents.
False
The most frequent sign of infectious bursal disease is lameness.
False
Only attenuated live vaccines are effective against infectious bursal disease
False
Several antigenic and virulence variants of infectious bursal disease virus are known.
True
The infectious bursitis is usually seen in 3 to 8 weeks-old flocks.
True
The most frequent sign of infectious bursal disease is lameness due to the inflammation of the subtendinal bursae.
False
IBDV does not cause disease in chicken over the age of two months.
True
The infectious bursitis virus is inactivated within 1-2 days in the environment.
False
A frequent sign of the infectious bursitis is encephalitis.
False
In Europe only low virulence strains of Infectious bursitis virus can be found.
False
The infectious bursitis virus does not cause any damage in chickens under the age of two weeks
False
Togaviruses cause encephalomyelitis in horses in East-Asia and in Australia only.
False
Several Togaviruses are zoonotic agents.
True
An early sign of Eastern encephalomyelitis is biphasic fever.
True
No vaccines are available against Togaviruses.
False
Mainly ticks are the vectors of Equine encephalomyelitis viruses.
False
Serological cross-reactions are seen between certain encephalomyelitis viruses.
True
Eastern equine encephalomyelitis virus infects only horses.
False
