BMS 127 Ch. 25 Pathogenic RNA viruses Flashcards
What do viruses in the families Picornaviridae, Caliciviridae, Astroviridae, Coronaviridae, Togaviridae, Flaviviridae, and Retroviridae have in common?
a. They are arboviruses
b. They are nonpathogenic
c. They have +ssRNA genomes
d. They have -ssRNA genomes
c. They have +ssRNA genomes
A segmented genome is one that
a. has more than one strand of nucleic acid
b. has double-stranded RNA
c. has both RNA and DNA strands
d. has both +ssRNA and -ssRNA molecules
a. has more than one strand of nucleic acid
The smallest animal viruses are in the family
a. Caliciviridae
b. Astroviridae
c. Togaviridae
d. Picornaviridae
d. Picornaviridae
Which of the following viruses cause most colds?
a. rhinoviruses
b. parainfluenza viruses
c. pneumoviruses
d. bunyaviruses
a. rhinoviruses
Arboviruses are
a. zoonotic pathogens
b. deactivated viruses used in vaccines
c. viruses that are transmitted to humans via the bite of an arthopod
d. found in arbors
c. viruses that are transmitted to humans via the bite of an arthopod
Negri bodies are associated with which of the following?
a. Marburg virus
b. hantavirus
c. coltivirus
d. rabies virus
d. rabies virus
If mosquitoes were eradicated from an area, which of the following diseases would be most affected?
a. mumps
b. hantavirus pulmonary syndrome
c. hepatitis E
d. breakbone fever
d. breakbone fever
Koplik’s spots are oral lesions associated with
a. mumps
b. measles
c. flu
d. colds
b. measles
Which of the following is an accurate statement concerning zoonoses?
a. They are animal diseases that spread to humans.
b. They are diseases specifically transmitted by mosquitoes and ticks.
c. They are mucus-borne viruses, which are transmitted in the droplets of moisture in a sneeze or cough.
d. They are diseases that can be transmitted from humans to an animal population.
a. They are animal diseases that spread to humans.
A horror movie portrays victims of biological warfare with uncontrolled bleeding from the eyes, mouth, nose, ears, and anus. What actual virus causes these symptoms?
a. Ebola virus
b. bunyavirus
c. hantavirus
d. human immunodeficiency virus
a. Ebola virus
Reoviruses, such as rotaviruses and coltiviruses, are unique in
a. being naked
b. having dsRNA
c. being both arboviruses and zoonotic
d. having protein spikes
b. having dsRNA
What is the virus family of the causative agent of Myocarditis?
Picornaviridae
What is the virus family of the causative agent of Colorado tick fever?
Reoviridae
What is the virus family of the causative agent of Rabies?
Rhabdoviridae
What is the virus family of the causative agent of Influenza?
Orthomyxoviridae
