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Preparation for Quarantine on the Cruise Ship Diamond Princess in Japan due to COVID-19.
JMIR Public Health Surveill. 2020 05 11; 6(2):e18821.JP

Abstract

BACKGROUND

Japan implemented a large-scale quarantine on the Diamond Princess cruise ship in an attempt to control the spread of the novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in February 2020.

OBJECTIVE

We aim to describe the medical activities initiated and difficulties in implementing quarantine on a cruise ship.

METHODS

Reverse transcription-polymerase chain reaction (RT-PCR) tests for SARS-CoV-2 were performed for all 3711 people (2666 passengers and 1045 crew) on board.

RESULTS

Of those tested, 696 (18.8%) tested positive for coronavirus disease (COVID-19), of which 410 (58.9%) were asymptomatic. We also confirmed that 54% of the asymptomatic patients with a positive RT-PCR result had lung opacities on chest computed tomography. There were many difficulties in implementing quarantine, such as creating a dividing traffic line between infectious and noninfectious passengers, finding hospitals and transportation providers willing to accept these patients, transporting individuals, language barriers, and supporting daily life. As of March 8, 2020, 31 patients (4.5% of patients with positive RT-PCR results) were hospitalized and required ventilator support or intensive care, and 7 patients (1.0% of patients with positive RT-PCR results) had died.

CONCLUSIONS

There were several difficulties in implementing large-scale quarantine and obtaining medical support on the cruise ship. In the future, we need to prepare for patients' transfer and the admitting hospitals when disembarking the passengers. We recommend treating the crew the same way as the passengers to control the infection. We must also draw a plan for the future, to protect travelers and passengers from emerging infectious diseases on cruise ships.

Authors+Show Affiliations

Department of Emergency and Disaster Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.Obstetrics & Gynecology, Yodogawa Christian Hospital, Osaka, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32365046

Citation

Yamahata, Yoshihiro, and Ayako Shibata. "Preparation for Quarantine On the Cruise Ship Diamond Princess in Japan Due to COVID-19." JMIR Public Health and Surveillance, vol. 6, no. 2, 2020, pp. e18821.
Yamahata Y, Shibata A. Preparation for Quarantine on the Cruise Ship Diamond Princess in Japan due to COVID-19. JMIR Public Health Surveill. 2020;6(2):e18821.
Yamahata, Y., & Shibata, A. (2020). Preparation for Quarantine on the Cruise Ship Diamond Princess in Japan due to COVID-19. JMIR Public Health and Surveillance, 6(2), e18821. https://doi.org/10.2196/18821
Yamahata Y, Shibata A. Preparation for Quarantine On the Cruise Ship Diamond Princess in Japan Due to COVID-19. JMIR Public Health Surveill. 2020 05 11;6(2):e18821. PubMed PMID: 32365046.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Preparation for Quarantine on the Cruise Ship Diamond Princess in Japan due to COVID-19. AU - Yamahata,Yoshihiro, AU - Shibata,Ayako, Y1 - 2020/05/11/ PY - 2020/03/21/received PY - 2020/05/04/accepted PY - 2020/04/26/revised PY - 2020/5/5/pubmed PY - 2020/5/22/medline PY - 2020/5/5/entrez KW - COVID-19 KW - SARS-CoV-2 KW - cruise ship quarantine KW - infectious control KW - infectious disease KW - outbreak KW - pandemic KW - preparation KW - public health KW - quarantine KW - surveillance SP - e18821 EP - e18821 JF - JMIR public health and surveillance JO - JMIR Public Health Surveill VL - 6 IS - 2 N2 - BACKGROUND: Japan implemented a large-scale quarantine on the Diamond Princess cruise ship in an attempt to control the spread of the novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in February 2020. OBJECTIVE: We aim to describe the medical activities initiated and difficulties in implementing quarantine on a cruise ship. METHODS: Reverse transcription-polymerase chain reaction (RT-PCR) tests for SARS-CoV-2 were performed for all 3711 people (2666 passengers and 1045 crew) on board. RESULTS: Of those tested, 696 (18.8%) tested positive for coronavirus disease (COVID-19), of which 410 (58.9%) were asymptomatic. We also confirmed that 54% of the asymptomatic patients with a positive RT-PCR result had lung opacities on chest computed tomography. There were many difficulties in implementing quarantine, such as creating a dividing traffic line between infectious and noninfectious passengers, finding hospitals and transportation providers willing to accept these patients, transporting individuals, language barriers, and supporting daily life. As of March 8, 2020, 31 patients (4.5% of patients with positive RT-PCR results) were hospitalized and required ventilator support or intensive care, and 7 patients (1.0% of patients with positive RT-PCR results) had died. CONCLUSIONS: There were several difficulties in implementing large-scale quarantine and obtaining medical support on the cruise ship. In the future, we need to prepare for patients' transfer and the admitting hospitals when disembarking the passengers. We recommend treating the crew the same way as the passengers to control the infection. We must also draw a plan for the future, to protect travelers and passengers from emerging infectious diseases on cruise ships. SN - 2369-2960 UR - https://www.unboundmedicine.com/medline/citation/32365046/Preparation_for_Quarantine_on_the_Cruise_Ship_Diamond_Princess_in_Japan_due_to_COVID_19_ L2 - https://publichealth.jmir.org/2020/2/e18821/ DB - PRIME DP - Unbound Medicine ER -