Microbiology Question: Download Microbiology PDF

The major virulence factor of Haemophilus influenzae type b is?

* A. Its surface pili
* B. Its surface polysaccharides
* C. Its cell wall
* D. Its cell membrane

Correct Answer: B

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A 4-year-old child comes to the emergency room with a sore throat, difficulty swallowing, and difficulty breathing. On exam there is obvious difficulty each time the child tries to take in a breath with sounds suggesting obstruction. A lateral neck x-ray shows a swollen epiglottis. The organism most likely to cause this syndrome is?	Important in the laboratory detection of Haemophilus influenzae is that it is?