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Biostatistics & Research · single question

Transmission risk ranking — which bloodborne pathogen carries the LOWEST risk of transmission after a needlestick exposure?

  1. HIV (~0.3%)
  2. Hepatitis C (HCV, ~1.8%)
  3. Hepatitis B (HBV, ~30%)
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Correct answer: A. HIV (~0.3%)

  • A. Correct. HIV has the lowest needlestick transmission risk (~0.3%) among these three bloodborne pathogens.
  • B. Hepatitis C carries an intermediate transmission risk (~1.8%), higher than HIV but lower than Hepatitis B.
  • C. Hepatitis B carries by far the highest transmission risk (~30%) of the three, due to its high infectivity.

Note: Transmission risk ranking: HIV 0.3% < Hepatitis C 1.8% < Hepatitis B 30%.

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