18 Questions
Which of the following is responsible for penetration and budding?
Neuraminidase
What is the result of antigenic shift?
Drastic change in the antigenic structure resulting in new H and N antigens
Which of the following is an example of Antigenic drift?
Point mutations in the viral genes encoding the HA and NA spikes
Which of the following is NOT a mechanism of antigenic shift?
Antigenic drift
Which flu is an example of highly pathogenic avian influenza (HPAI)?
H5N1 Avian Flu
What is the result of the reassortment of genomes in antigenic shift?
A new strain of influenza virus
What type of RNA does Orthomyxoviridae have in its genome?
ssRNA
Which of the following is NOT a diagnostic method for Influenza?
Gram Staining
What is the primary function of Neuraminidase Inhibitors in Influenza treatment?
To inhibit the release of viral particles from the host cell
What is the primary goal of Orthomyxoviridae antigenic variation?
To evade the host's immune system
What is the composition of the Influenza A virus?
8 segments of ssRNA
What is the primary method of preventing Influenza?
Vaccination
What is the primary mode of transmission for Retroviridae?
Sexual contact and injection drug use
Which generation of HIV tests detects and differentiates all three HIV analyte markers?
5th generation
What is the result of opportunistic infections in individuals with MOT disease?
All of the above
What is the purpose of ELISA screening in HIV diagnosis?
To screen for HIV infection in high-risk populations
What is the consequence of antigenic variation in HIV?
All of the above
What is the primary goal of pandemic prevention strategies for Retroviridae?
To reduce transmission through sexual contact
This quiz covers the concepts of hemagglutination, neuraminidase, antigenic variation, and antigenic drift in influenza viruses. It explores how mutations in viral genes lead to changes in antigenic structures, resulting in varying effects on the virus.
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