Micro & Immunology · single question

All of the following are classically bloodborne pathogens EXCEPT:

  1. Hepatitis C
  2. Hepatitis B
  3. HIV
  4. Tuberculosis (TB is an airborne pathogen, transmitted via respiratory droplets/aerosols, not bloodborne)
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Correct answer: D. Tuberculosis (TB is an airborne pathogen, transmitted via respiratory droplets/aerosols, not bloodborne)

Hepatitis B, hepatitis C, and HIV are all classic bloodborne pathogens, transmitted primarily through blood/body fluid exposure. Tuberculosis, by contrast, is an airborne pathogen, transmitted via inhalation of infectious respiratory droplet nuclei — a fundamentally different transmission route requiring different infection control precautions (airborne precautions/N95 respirators rather than just standard bloodborne pathogen precautions).

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