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Question

Difficulty: MediumHealth, Nutrition, and Disease

A medical team evaluates several recruits presenting with acute infectious symptoms at a training installation. Which recruit has a condition that can be cured by administering an antibiotic regimen?

  1. A
    A recruit suffering from infectious mononucleosis
  2. A recruit diagnosed with streptococcal pharyngitisAnswer
  3. C
    A recruit infected with seasonal influenza
  4. D
    A recruit experiencing viral gastroenteritis

Answer

A recruit diagnosed with streptococcal pharyngitis
Streptococcal pharyngitis (strep throat) is caused by Streptococcus pyogenes, a bacterium. Antibiotics function by disrupting bacterial physiological processes such as cell wall synthesis and protein production, effectively clearing bacterial infections.

Step-by-Step Solution

1
Identify the biological target of antibiotic medications.
Antibiotics selectively target bacterial structures (such as peptidoglycan cell walls) and bacterial metabolic pathways.
Understanding drug mechanisms clarifies why antibiotics only work against bacterial pathogens, not viruses.
2
Classify the causative agent for each listed medical condition.
Streptococcal pharyngitis is bacterial (Streptococcus pyogenes), whereas influenza, infectious mononucleosis, and viral gastroenteritis are viral.
Determining pathogen classification is necessary to match the appropriate therapeutic intervention.
3
Select the condition matching the bacterial classification.
Streptococcal pharyngitis is the only bacterial infection listed and thus the only condition curable with antibiotics.
Direct alignment of bacterial etiology with antibacterial pharmacology.

Key Concept

Antibiotic Specificity and Pathogen Classification
Estimated Time:1m 0s
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Topics

Health, Nutrition, and Disease

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