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.
In case of vesicular stomatitis vesicles are formed only at place of entry of virus.
T.
Salivation is a CX of vesicular stomatitis.
T.
Vesicular stomatitis cannot be prevented with vaccines.
F.
Vesicular stomatitis is a zoonosis.
T.
The rabies virus is a uniform virus without serotypes, genotypes, subtypes.
F.
Only Car animals are susceptible to the rabies virus.
F.
High amt of rabies virus is shed in saliva.
T.
Sylvatic rabies is maintained by foxes in Europe.
T.
Bo enzootic leukosis virus can be transmitted with lymphoid cells.
T.
Iatrogenic infection is frequent in the epidemiology of Bo enzootic leukosis.
T.
The target cells of Bo enzootic leukosis virus are T ly.
F.
The typical signs of Bo enzootic leukosis can be seen in cattle <1 yr.
F.
All avian leukosis viruses are oncogenic.
T.
Avian leukosis viruses are shed in faeces.
T.
There is ø germinative infection in case of avian leukosis virus.
F.
The target cells of avian leukosis are B ly.
T.
Borna disease is widespread all over the world.
T.
Only Eq are susceptible to borna disease virus.
F.
Pneumonia is the main CS of borna disease.
F.
Most animals showing CS of borna disease die due to it.
T.
Infective prions are resistant to proteases.
T.
Only a few animals show CS of BSE in an infected herd.
T.
BSE prions are shed in faeces + it is transmitted to other cattle in the herd.
F.
The incubation time of BSE is 3 - 5 yrs.
T.
Anthrax ø occur in dogs + cats.
F.
Bacillus anthracis generally infects animals/os.
T.
Anthrax is an acute/ peracute disease in cattle.
T.
Anthrax cannot be prevented with vaccination.
F.
Blackleg is caused by Cl septicums.
F.
In case of sheep, blackleg is generally a consequence of wound infection.
T.
Oedema in the m is a typical CS of blackleg.
T.
Attenuated vaccines are used for the prevention of blackleg.
F.
Tetanus occurs only in Eq.
F.
Tetanus toxin cleaves the synaptobrevin.
T.
The CS of tetanus are inducible.
T.
Tetanus cannot be prevented with vaccine.
F.
EC enzymes are important factors of pathogenic Staph.
T.
Morel’s disease is mainly seen in suckling lambs.
F.
Diarrhea is the main CS of morel’s disease.
F.
Isolation of agent from lesions of morel’s disease confirms diagnosis.
T.
Listeriosis can only be seen in sheep.
F.
Abortion is the most frequent form of listeriosis in sheep.
F.
Aerogenic infection is the most important form of infection with listeria in sheep.
F.
Listeriosis is spreading fast from 1 animal to the other.
F.
Caseous lymphadenitis is caused by nitrate +ve strains of corynebacterium pseudotuberculosis.
F.
Caseous lymphadenitis is only seen in suckling lambs.
F.
Arthritis can be a CS of caseous lymphadenitis.
T.
Vaccination can be used for the prevention of caseous lymphadenitis.
T.
The natural hosts of influenza A virus are humans.
F.
Certain antiviral drugs can inhibit M2 ion channels of influenza A virus.
T.
The AA sequence of protease cleavage site of influenza A virus haemagglutinin may influence the virulence.
T.
At least 11 different serotypes of influenza A virus neuraminidase are known so far.
T.
In Eq predominantly H3N8 influenza A strains can cause disease.
T.
It is forbidden to use Ab for TX of influenza in Eq.
F.
Sus- adapted influenza A viruses cannot cause disease in humans.
F.
The vaccination of poultry against avian influenza is mandatory.
F.
Bo parainfluenza virus 3 is frequent endemic in cattle farms.
T.
It is mandatory to vaccinate cattle against rinderpest.
F.
Erosive lesions in oral cavity are frequent signs of PPR.
T.
Nowadays rinderpest virus is used as heterologous vaccine against PPR virus.
F.
Dogs infected with distemper virus usually become life- long carriers + shedders.
F.
Clinical manifestation of distemper is mainly seen in 3-4 mnths of age.
T.
Canine parainfluenza virus 2 frequently causes encephalitis in old dogs.
F.
Fel morbilivirus infection may be associated with tubule- interstitial nephritis in cats.
T.
Wild birds maybe reservoir hosts of influenza viruses.
T.
Wild birds may be reservoir hosts of newcastle disease virus.
T.
Wild birds may be reservoir hosts of avian metapneumovirus.
T.
Wild birds may be reservoir hosts of nipah viruses.
F.
TGE is more severe in piglets than adults.
T.
PRCoV is a modification of the hemagglutinating encephalomyelitis virus.
F.
Porcine epidemic diarrhea is present only in Africa + the middle east.
F.
Haemagglutinating encephalomyelitis virus is typically vectored by mosquitoes.
F.
Bo Coronavirus can cause diarrhea only in calves up to 1 mnth of age.
F.
Canine Coronavirus frequently cause encephalitis + hepatitis in puppies.
F.
FIP develops only in adult cats.
F.
Decreased serum Alb/ Glob ratio may indicate FIP.
T.
Mares are frequently lifelong carriers of Eq arteritis virus.
F.
SC oedema is a freq CS of EVA( Eq viral arteritis).
T.
PRRSV can cause abortion only in the advanced stage of pregnancy.
F.
Only inactivated vaccine can be used for the prevention against PRRSV.
F.
Rhabdovirus are very resistant + they can survive in the environment for several wks.
F.
VS occurs in America.
T.
The host range of VS + FMD is the same.
T.
Sand flies + midges can transmit VS virus.
T.
Urban forms of rabies is maintained by dogs + cats.
T.
Rabies virus is spreading in the infected animals perineural.
T.
Rabies virus is shed in the saliva before SX appear.
T.
The incubation of rabies is generally <1 wk.
F.
Retroviruses show high host specificity.
T.
Retrovirus are generally ø carried for >1 mnth.
F.
Malignant transformation is a frequent consequence of retrovirus infection.
T.
Retroviruses generally ø survive in the environment for a long time.
T.
Infection of poultry herds with avian leukosis is widespread.
T.
CS of avian leukosis generally appear in d old chicken.
F.
