Multiple Choice
Which statement regarding the normal microbiota of the human respiratory system is false?
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1. Introduction to Microbiology
Introduction to Microbiology
Multiple Choice
Which of the following conditions is most likely to be a polymicrobial infection?
A
Streptococcal pharyngitis
B
Diabetic foot ulcer
C
Gonorrhea
D
Tuberculosis
Verified step by step guidance1
Step 1: Understand the term 'polymicrobial infection' — it refers to an infection caused by more than one microbial species simultaneously, often involving a mixture of bacteria, fungi, or other microorganisms.
Step 2: Analyze each condition to determine if it typically involves a single pathogen or multiple pathogens: Streptococcal pharyngitis is usually caused by a single species, Streptococcus pyogenes.
Step 3: Gonorrhea is caused by a single bacterial species, Neisseria gonorrhoeae, so it is generally a monomicrobial infection.
Step 4: Tuberculosis is caused by Mycobacterium tuberculosis, a single pathogen, making it a monomicrobial infection as well.
Step 5: Diabetic foot ulcers often involve multiple types of bacteria and sometimes fungi due to the complex wound environment, making them classic examples of polymicrobial infections.
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