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Hepatitis B is an occupational risk for health care workers chiefly through

  • A.needlestick injury
  • B.breathing the same air as patients
  • C.handling patient records
  • D.sharing a staff canteen

Answer: A

Correct answer: needlestick injury

Hepatitis B is transmitted by percutaneous exposure to blood, and a needlestick from an infected patient carries a substantial risk - historically as high as 30 per cent from an e-antigen-positive source, which is far greater than for hepatitis C or HIV. Vaccination of health care workers is the reason the occupational risk is now small.

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