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Discussion

Hepatitis B virus remains infectious on environmental surfaces for at least

  • A.seven days
  • B.about thirty minutes
  • C.about four hours
  • D.about one year

Answer: A

A week of survival outside the body means that blood-contaminated surfaces and shared items such as razors and toothbrushes are genuine routes of transmission. It is one reason the virus spreads within households without any sexual or injecting exposure.

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