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10 Cards in this Set
- Front
- Back
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the reservoir and vector for the Arenaviruses is which of the following?
a. Rodents b. Birds c. Mosquitoes d. Sandflies e. Bats |
a. Rodents
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For the arthropod-borne viruses (e.g. togaviruses, flaviviruses), it is important that the reservoirs:
a. Suffer severe disease with infection b. Be a bird species c. Shed the virus from mucosal surfaces d. Maintain a viremia e. Have acquired immunity to the virus |
d. Maintain a viremia
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The natural reservoir of the virus of severe acute respiratory syndrome (SARS) is believed to be:
a. Bats b. Ticks c. Feral swine d. Birds e. Small mammals |
a. Bats
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Toroviruses generally cause which of the following disease syndromes?
a. Encephalitis b. Gastroenteritis c. Acute renal failure d. Vasculitis e. Pneumonia |
b. Gastroenteritis
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Within the Coronavirus genus of Coronaviridae, segregation of viruses into groups I-III is primarily based on:
a. Antigenicity b. Genomic sequence c. Virion diameter d. Capsomer number e. Animal host |
a. Antigenicity
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e. Coronaviridae and Arteriviridae
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The geographic distribution of arthropod-borne (arbo-) viruses is determined in large part by:
a. Mode of transmission amonmg reservoirs b. Distribution of vector species that are permissive for the virus c. Anatomic site of viral shedding in reservoirs d. Hardiness of the virus in the environment e. Antigenicity of the virus |
b. Distribution of vector species that are permissive for the virus
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Arteriviridae members differ from Coronaviridae members in which of the following properties?
a. Capsid symmetry b. Presence of envelope c. Linear vs circular genome d. Genomic sense (i.e. positive vs negative) e. Presence of spike proteins (peplomers) |
a. Capsid symmetry
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The enterotropic Coronaviruses target which of the following intestinal cell types?
a. Crypt epithelia b. Epithelia of villus tips c. M cells d. Intestinal vascular endothelia e. Intraepithelial lymphocytes |
b. Epithelial of villus tips
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The enteric Coronaviruses generally cuase the most severe disease in:
a. Ruminants b. Very young animals c. Cloven-hoffed animals d. Poultry e. Pregnant animals |
b. Very young animals
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