The CDC annually advised to update our influenza vaccination. What is the reason for this?
The influenza virus is capable of antigenic variability.
Our influenza antibodies undergo apoptosis each year.
Differentiation
Proliferation
The Correct Answer is A
A. Antigenic variability in the influenza virus, due to mutations and genetic reassortment, necessitates annual updates to the vaccine to match circulating strains effectively.
B. While antibody levels may decline over time, they do not undergo apoptosis in a way that directly requires annual vaccination.
C. Differentiation is not relevant in this context.
D. Proliferation refers to cell division and is not a primary reason for the need to update the influenza vaccine.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Antigenic variability in the influenza virus, due to mutations and genetic reassortment, necessitates annual updates to the vaccine to match circulating strains effectively.
B. While antibody levels may decline over time, they do not undergo apoptosis in a way that directly requires annual vaccination.
C. Differentiation is not relevant in this context.
D. Proliferation refers to cell division and is not a primary reason for the need to update the influenza vaccine.
Correct Answer is A
Explanation
A. Anti-inflammatory drugs primarily work by blocking the chemical mediators of inflammation, such as prostaglandins, thereby reducing pain and swelling.
B. While some anti-inflammatory medications may affect blood flow indirectly, their main action is not to increase blood flow to tissues.
C. Anti-inflammatory drugs may help minimize scar formation indirectly but are not primarily indicated for that purpose.
D. These drugs do not enhance the immune system; instead, they modulate inflammatory responses.
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