Interventional Study of Nonpharmaceutical Measures to Prevent COVID-19 Aboard Cruise Ships.

Varvara A Mouchtouri, Leonidas Kourentis,Lemonia Anagnostopoulos, Michalis Koureas,Maria Kyritsi, Katerina Maria Kontouli, Fani Kalala, Mattheos Speletas,Christos Hadjichristodoulou

Emerging infectious diseases（2024）

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摘要

Cruise ships carrying COVID-19-vaccinated populations applied near-identical nonpharmaceutical measures during July-November 2021; passenger masking was not applied on 2 ships. Infection risk for masked passengers was 14.58 times lower than for unmasked passengers and 19.61 times lower than in the community. Unmasked passengers' risk was slightly lower than community risk.

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SARS-CoV-2,COVID-19,coronavirus,severe acute respiratory syndrome coronavirus 2,viruses,respiratory infections

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