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Volume 27, Number 7—July 2021

COVID-19 Outbreak on a Passenger Ship and Assessment of Response Measures, Greece, 2020

Sophia Hatzianastasiou1, Varvara A. Mouchtouri1, Androula Pavli, Maria Tseroni, Spyros Sapounas, Charalampos Vasileiou, Katerina Dadouli, Maria Kyritsi, Michalis Koureas, Panagiotis Prezerakos, Matthaios Speletas, Georgios Panagiotakopoulos, Sotirios Tsiodras2, and Christos Hadjichristodoulou2Comments to Author 
Author affiliations: Hellenic National Public Health Organization, Athens, Greece (S. Hatzianastasiou, A. Pavli, M. Tseroni, S. Sapounas, G. Panagiotakopoulos); University of Thessaly Faculty of Medicine, Larisa, Greece (V.A. Mouchtouri, K. Dadouli, M. Kyritsi, M. Koureas, M. Speletas, C. Hadjichristodoulou); European Union Healthy Gateways Joint Action, Larisa (V.A. Mouchtouri, C. Hadjichristodoulou); Department of Hygiene Inspections of the Port of Piraeus, Region of Attica, Athens (C. Vasileiou); University of Peloponnese Department of Nursing, Tripoli, Greece (P. Prezerakos); University of Patras Faculty of Medicine, Patra, Greece (G. Panagiotakopoulos); National and Kapodistrian University Medical School, Athens (S. Tsiodras)

Main Article


Multivariate analysis of risk factors for SARS-CoV-2 infection during an outbreak on a passenger ship, Greece, March 20–April 18, 2020*

Factor Area of work (for crew members)
Consuming meals and drinks in galley/dining area/bar A‡
Food and beverage Housekeeping and hotel Other†
A Referent
B 0.00 (0.00–0.00) NA NA NA
C 1.20 (0.51–2.81) 0.11 (0.02–0.75) 0.03 (0.002–0.42) 0.49 (0.24–0.99)
D 0.81 (0.36–1.83) 0.23 (0.05–1.14) NA 0.54 (0.27–1.08)
E 0.90 (0.25–3.21) 0.96 (0.10–9.27) NA 0.94 (0.32–2.78)
Other† 1.51 (0.41–5.62) 1.02 (0.14–7.20) 0.22 (0.02–2.98) 1.52 (0.59–3.91)
Consuming meals and drinks in galley/dining area/bar A‡
Referent 2.71 (1.34–5.46) 4.44 (1.81–10.95) NA

*A total of 120 passengers and crew tested positive during the first specimen collection and testing. Values in bold type are statistically significant. SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; NA, not applicable. †Entertainment, security, shop, hospital, other. ‡Meals and beverages were prepared and served in galley and dining room and café-bar A (for travelers who embarked at Cesme port) and in galley and dining room and café-bar B (for travelers who embarked at Piraeus port).

Main Article

1These first authors contributed equally to this article.

2These senior authors contributed equally to this article.

Page created: April 19, 2021
Page updated: June 17, 2021
Page reviewed: June 17, 2021
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