10 Questions
Which type of influenza viruses are responsible for seasonal flu epidemics?
Influenza A
What is the composition of the Orthomyxoviruses virion?
RNA (1%), protein (73%), lipid (20%), carbohydrate (6%)
Which of the following types of Orthomyxoviruses infect humans?
Influenza A, B, and C
What is the typical incubation period for human influenza?
1 to 4 days
What type of specimens are more sensitive than pharyngeal swabs for the laboratory diagnosis of human influenza?
Nasal washes and nasopharyngeal aspirates
Which of the following symptoms are commonly associated with uncomplicated infections of human influenza?
Fever and chills
Where does the replication of the genome in influenza viruses take place?
Nucleus
Which influenza virus protein has the ability to inhibit interferon mRNA?
NS1
What does 'antigenic shift' in influenza virus refer to?
Major change in genome
All of the following are functions of Neuraminidase (NA) except:
It assists in viral genome replication.
Test your knowledge on the introduction to Orthomyxoviruses in the context of Virology Lecture 3rd Stage at the Department of Medical Labs, College of Health and Medical Technologies, Al Ain University.
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