MT3 Flashcards
The PPR is endemic in N. + S. America.
F.
The canine distemper virus can infect only dogs.
F.
The outcome of canine distemper virus infection is very much determined by the immune response of the dog.
T.
In utero canine distemper virus may result in abortion.
T.
The virulence of ND strains can be determined by sequence analysis of virus genes.
T.
ND virus cannot survive long in the environment.
F.
ND is typically vectored by ticks.
F.
Only inactivated vaccines can be used against ND virus.
F.
Parainfluenza 2 virus is frequent in the etiology of kennel cough.
T.
The natural hosts of hendravirus are flying foxes.
T.
Hendravirus can cause encephalitis in Eq + humans.
T.
Avian metapneumovirus can cause respiratory signs + egg production problems.
T.
Porcine respiratory coronavirus infection usually provides cross- protection from transmissible gastroenteritis virus infections.
T.
Transmissible gastroenteritis virus can infect only Sus.
F.
Bo coronavirus may cause respiratory signs in calves.
T.
Canine α-coronavirus type 2 may cause hemorrhagic disease in 1 - 2 mnths old pups.
T.
Fel enteric coronavirus usually causes severe, hemorrhagic enteritis in kittens.
F.
Cell- mediated hypersensitivity plays a major role in the background on non- effusive fel infectious peritonitis.
T.
IBV can cause inflammatory lesions in oviduct of chicken.
T.
IBV vaccines are used against turkey enteritis.
F.
Pregnant mares usually abort in acute phase of viral arteritis.
T.
Eq viral arteritis is diagnosed by agarose- gel immunodiffusion ( coggins).
F.
Porcine reproductive respiratory syndrome virus ( PRRSV) propagates in lymphatic cells.
T.
PRRSV infection may influence the reproductive performance of boars.
T.