FMD virus

FMD Quick Quiz!


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Quiz yourself with these multiple choice questions! The answers are somewhere on this site.

1.    Which of the following is not a step in the CFIA hazard plan for dealing with a FMD outbreak
a.    Tracing and surveillancePhoto6
b.    Stamping out
c.    Wildlife and vector control
d.    Treating infection
Answer

2.    According to the OIE  Canada is considered to be:
a.    Free of FMD with vaccination
b.    Free of FMD without vaccination
c.    Infected with FMD but under control
d.    Trying to contain an outbreak
Answer

3.    Imagine that you have been asked to help out veterinarians in a country that was currently utilizing vaccinations to reduce the prevalence of foot and mouth disease. As part of their evaluation of their disease control program they would like to distinguish between animals that have been infected by viral antigen of foot and mouth disease from animals that have been vaccinated against foot and mouth disease. What test would you recommend?
a.    Serological tests to detect antibodies to viral structural proteins
b.    The nucleic acid recognition test Agarose Gel-based RT-PCR
c.    The immunological test ELISA
d.    Serological tests to detect antibodies to viral nonstructural proteins
Answer

4.    These same veterinarians (question 4) would like your advice on what samples to collect from cows that are currently showing clinical signs:
a.    blood sample
b.    oropharynx fluid and cells
c.    fluid from unruptured vesicles
d.    tracheal wash
Answer

5.    Since FMD is extremely contagious, it is crucial to understand how the virus is transmitted and spread.  If you were in the midst of a FMD virus outbreak on a cattle and swine farm. You have limited time and resources. Which ONE action is most suitable to limit transmission? Tip: Keep in mind the routes of transmission.
a.    Euthanize suspect pigs right now since swine are the most susceptible to the virus via aerosol!
b.    Euthanize suspect cattle right now since cattle are the most susceptible to the virus via aerosol!
c.    Physically isolate all suspected cattle into a separate pen on the farm as far away as possible from uninfected cattle until testing is complete since there are other diseases that resemble FMD.
d.    Physically isolate all suspected pigs into a separate pen on the farm as far away as possible from uninfected pigs until testing is complete since there are other diseases that resemble FMD.
Answer

6.    You are the vet treating the cattle and pigs above (question 5).  In order to prevent spread of this extremely contagious virus in Saskatoon and Canada, the appropriate authorities need to be notified and emergency protocols need to be implemented as soon as FMDV is diagnosed.  Which of the following would be the BEST diagnostic test for FMDV detection?
a.    Virus isolation of a probang swab sample from a suspect infected cow
b.    Serological test of acute and convalescent blood sample.  High antibody titres correlate with natural exposure to the virus in Canada.
c.    PCR of a swab from an unruptured lesion
d.    Full history and clinical examination, since the signs of FMDV infection in cattle and swine are pathognomonic
Answer

7.    Affected animals usually clear the viremia in a relatively short amount of time.  Which of the following is NOT true about the course of the disease after exposure?
a.    Protective levels of antibodies are produced rapidly after infection and remain high for a considerable amount of time after natural exposure.
b.    As many as 50% of cattle remain carriers intermittently shedding virus for up to 2 years.
c.    Amplification occurs in the keratinized stratified epithelium
d.    After primary replication virus is limited to the sites of amplification.
Answer

8.    Which of the following signs is NOT consistent with cows infected with FMD?
a.    Viremia in the calf leading to myocardial infarction
b.    Anorexia
c.    Mastitis
d.    Lesions in the soft palate or the dorsal part of the pharynx
Answer

9.    What is Canada's official stauts regarding FMD?
a.     FMD-free zone with vaccination
b.     FMD-free member with vaccination
c.     FMD-free zone where vaccination is not practiced
d.     a. and b.
Answer

10.    What does Picornavirus mean?
a.     "dirt-eating virus"
b.     "those who eat corn"
c.     "small RNA virus"
d.     "related to coronavirus"
Answer

Quarantine2
FMD Quick Quiz




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Created September 2010
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