HIGHLIGHTS

  • Infection rate in cabins with previous case was not statistically different than those without.
  • Age of subject was found not to be a confounding factor.
  • Conflicting results from previous studies of this outbreak are largely explainable.
  • Airborne transmission through the HVAC system could explain the virus spread on the ship.
  • Recirculated air and inadequate air filtration likely increased airborne transmission.

 

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