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Question
Biology
Posted 2 months ago

A flu patient developed a streptococci infection in his upper respiratory tract a week after the flu symptoms appeared. What is the primary pathogen in this case?
A. streptococci bacteria
B. influenza virus
C. normal microbiota in his upper respiratory tract
D. none of above
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Answer from Sia
Posted 2 months ago
B
Key Concept
Primary Pathogen
Explanation
The primary pathogen in this case is the influenza virus, as it was the initial cause of the flu symptoms. The streptococci infection is a secondary infection that occurred due to the weakened immune system from the flu.

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