9. RTI-2 Flashcards
A military base is hit with a contagious illness. It is determined to be a linear, ds DNA non-enveloped icosahedral virus. What provides the toxic activity of this virus ?
A. Spike Protein B.Fiber Protein C. CAR D.Hemagglutinin E. Penton Bases
RFA
ANS: E. Penton Bases - the vinete describes Adenovirus provide toxicity
A. Spike Protein- Coronavirus host binding
B. Fiber Protein- bind to host for Adenovirus
C: CAR-Coxsackie Adenovirus Receptor, varies with serotype
D. Hemagglutinin-binding protein of Influenza
A man travels to Singapore for a month of business and returns home and 4 days later has a high fever and headache. By the end of the week he develops a non-productive cough and dyspnea. What is a characteristic of this viral agent that likely infected the man?
A. Replication occurs in the cytoplasm B. Naked Virus C.dsDNA virus D. Obtains envelope from the plasma membrane E. Circular Nucleocapsid
RFA
ANS. A - The patient has SARs which is causes by a Coronavirus, which has a unique replication cycle and replicates in the cytoplasm compared to the nucleus
B. Coronavirus is enveloped
C. It is a + strand RNA virus
D. It obtains its plasma membrane from the ER
E. It has a helical nucleocapsid
A 5 y/o boy was playing in a public pool. He developed a cough, fever, and later developed nausea and vomiting. Which of the following is the causative agent?
A. Coronavirus B. Rhinovirus C. Enterovirus D. Adenovirus E. EBV
SZ
Ans. D. Adenovirus
The boy was playing in a public pool which is indicative of adenovirus. He also has respiratory symptoms and GI symptoms which is specific for adenovirus.
A business man returns from Saudia Arabia with fever, productive cough, hemopytisis, and GI issues. He is admitted to the hospital for treatment. Which of the following is a characteristic of the virus?
A. dsDNA B. non-enveloped C. icosohedral D. helical E. fiber proteins
SZ
Ans. D Helical
The man has MERS which is caused by coronavirus. It is a +ssRNA, enveloped, helical, linear virus with spikes.
