Which of the Following is Not True of In?uenza

Question

Which of the following is not true of in?uenza?
A) In?uenza has glycoprotein spikes of hemagglutinin (H) and neuraminidase (N).
B) Antigenic drift changes the antigens to reduce immune recognition.
C) Antigenic shift causes changes in the RNA strands.
D) In?uenza B viruses undergo both antigenic drift and antigenic shift.
E) H5N1 is the bird ?u strain that may cause a pandemic.

Accepted Answer

Influenza B viruses undergo antigenic drift but not antigenic shift. Antigenic shift, which involves the reassortment of RNA segments, typically occurs in influenza A viruses and can lead to the emergence of new viral subtypes to which the human population has little or no immunity, potentially causing pandemics.