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

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

Format: Article
Diterbitkan: Centers for Disease Control and Prevention 2024-05-01

Deskripsi

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.