国际标准期刊号: 2329-6879

职业医学与健康事务

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  • 哥白尼索引
  • 谷歌学术
  • 打开 J 门
  • 学术钥匙
  • 中国知网(CNKI)
  • 参考搜索
  • 哈姆达大学
  • 亚利桑那州EBSCO
  • OCLC-世界猫
  • 普布隆斯
  • 日内瓦医学教育与研究基金会
  • 欧洲酒吧
  • 日内瓦医学教育与研究基金会
  • ICMJE
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抽象的

SARS-CoV-2 Infections among Crew Members Onboard Passenger-Voyaging Cruise Ships during a Period of Delta Variant Predominance-United States, June- October 2021

Emeka Oraka, Erin D Moritz, Michtta Jean-Louis, Shelby Scott, Stefanie White, Amy Freeland, Aimee Treffiletti, Kara Tardivel

Objective: Following suspension of cruising due to the COVID-19 pandemic, passenger voyaging operations resumed in June 2021 when cruise lines, with assistance from the Centers for Disease Control and Prevention (CDC), implemented protocols to manage COVID-19. We describe demographic characteristics, time since vaccination and living and working conditions of crew members testing positive for SARS-CoV-2 following resumption of passenger operations in the US during a period of Delta variant predominance.

Methods: Ships sailing under CDC’s framework for conditional sailing order reported SARS-CoV-2 test results, vaccination rates and hospitalizations/medical evacuations due to SARS-CoV-2 infection to CDC daily. Ships experiencing large outbreaks (≥ 20 SARS-CoV-2–positive cases among crew/passengers within 14 days) submitted additional case data (e.g. demographics, vaccination history, living/working quarters and numbers of crew members who were close contacts of cases).

Results: During June-October 2021, 1,079 SARS-CoV-2 positive crew members were reported to CDC; 402 cases from large outbreaks had case level data and were included in this analysis. All cases completed a primary vaccine series before they were infected. Median number of days from last vaccination to infection was 76 days (Interquartile Range (IQR): 53-98). Most crew received the Janssen vaccine (n=302; 76%) and Janssen recipients had lower median number of days from last vaccination to infection than recipients of vaccines from other manufacturers (75 days (IQR: 55-87) vs. 86 days (IQR: 46-125; p=0.03)). No hospitalizations or medical evacuations for SARS-CoV-2 were reported; 263 cases (65%) were asymptomatic at time of testing. Forty percent of cases shared either a cabin or restroom with another crew member at time of diagnosis.

Conclusion: SARS-CoV-2 infections were reported among vaccinated crew member’s onboard passenger voyaging ships although severe illness was rare. Enhancements to existing COVID-19 mitigation measures and facilitating booster vaccination, ensuring vaccinations are up to date, may reduce the risk of infections in such congregate settings.

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