Measles virus is used to protect puppies against canine distemper. This is possible becasue of antigenic similarity of their:
fusion [F] protein
T/F: There is significant cross-protection among the different serotypes of Vesicular Stomatitis
There are 2 serotypes and several subtypes of vesiculovirus. There is no cross-protection among the serotypes
The Coggins test is used in detecting horses with:
equine infectious anemia
T/F: Adenoviridae virions agglutinate RBCs
Which species is known to be resistant to Infectious Canine Hepatitis, but susceptible to Canine Distemper?
Corneal edema [blue eye] occurs in most cases of Infectious Canine Hepatitis [ICH]
Corneal edema occurs in about 20% of natural infections and less than 1% of dogs after vaccination
T/F: Most Infectious Canine Hepatitis infections are asymptomatic
Which breed is said to be especially susceptible to Equine Adenovirus Infection? Why?
Arabian foals are known to be very susceptible due to their combined T and B cell immunodeficiency
Describe the inclusion bodies associated with Retroviruses
There are no inclusion bodies. So you would just be explaining nothing.
What a waste of time.
T/F: Endogenous Retroviruses are pathogenic retroviruses that occur widely in the genome of vertebrates
Endogenous Retroviruses are non-pathogenic retroviruses that occur widely in the genome of vertebrates
Fading kitten syndrome is associated with viremic queens infected with:
feline leukemia virus
The ELISA test for feline leukemia detects the presence of:
circulating p27 antigen in plasma
p27 protein is the mjor feline leukemia virus [FeLV] group-specific antigen. It is produced within virus infected leukocytes and platelets
p 152, 156
Which porcine disease is commonly associated with splenic infarcts and button ulcers in the colon?
T/F: The disease of Maedi/Visna has been reported in sheep, cattle and swine.
Maedi/Visna is a disease of adult sheep and, to some extent, goats.
T/F: Incubation period of rabies is influenced by the distance the virus has to travel from its port of entry to the CNS.
T/F: A property of a virus belonging to the family paramyxoviridae is their ability to hemagglutinate RBCs in vitro.
T/F: Recovery from feline calicivirus infection is marked by intermittent shedding of virus for a period of time
T/F: A virus causing hog cholera can be identified in the lab using hemadsorption-inhibition assay
Diagnostic tests include virus isolation, antigen detection (FA or immunoperoxidase staining, ELISA), or serology
T/F: In feline immunodeficiency disease, the virus is shed mainly in saliva and principle mode of transmission is bites
T/F: Depopulation, a disease control measure, involves the culling of diseased animals only
Depopulation is the elimination of all susceptible hosts (infected, potentially infected, or contact animals) of a herd/flock or area basis
T/F: Regarding infectious canine hepatitis, the threshold antibody titer has been determined to be 1:100
T/F: Immunosuppression is a common sequela in diseases characterized by leukocytosis
Leukocytosis is a transient increase in the number of leukocytes in the blood
T/F: Antiretroviral protease inhibitors prevent the transcription of retroviral RNA into DNA genome
They inhibit viral proteases responsible for the cleavage of viral polyproteins into functional proteins by binding to their active sites
T/F: Corneal edema (blue eye), observed in some puppies presenting with infectious canine hepatitis, is an immune complex-mediated disease
T/F: Mammalian influenza virus is restricted to respiratory tract epithelial cells
T/F: BVD-MD is a cytopathic and non-cytopathic co-infection
T/F: Valtrex cannot be used to treat a herpesvirus infection caused by a herpesvirus with mutation in its thymidine kinase gene
Acyclovir requires the herpesvirus-specified enzyme, thymidine kinase, to phosphorylate it to acyclovir monophosphate.
T/F: Acute and convalescent serum samples for titration of antigen specific antibody titers are collected two to four weeks apart
T/F: After virus penetration into host cell, the parental RNA genome of a retrovirus is copied by reverse transcriptase into double-stranded DNA; this change in chromosome takes place in the nucleus of the host cell
Viral RNA is released into the cytoplasm. Parental RNA is copied to ssDNA by reverse transcriptase. ssDNA is made double-stranded, again by reverse transcriptase. dsDNA moves into the nucleus
T/F: The hemadsorption-inhibiting assay is always carried out using virus-infected cell culture