Environmental Sampling for Severe Acute Respiratory Syndrome Coronavirus 2 During a COVID-19 Outbreak on the Diamond Princess Cruise Ship

Author:

Yamagishi Takuya1ORCID,Ohnishi Makoto2,Matsunaga Nobuaki3,Kakimoto Kensaku4,Kamiya Hajime1,Okamoto Kiyoko1,Suzuki Motoi1,Gu Yoshiaki3,Sakaguchi Mikiyo3,Tajima Taichi3,Takaya Saho5,Ohmagari Norio5ORCID,Takeda Makoto6,Matsuyama Shuyoku6,Shirato Kazuya6,Nao Naganori6,Hasegawa Hideki7,Kageyama Tsutomu7,Takayama Ikuyo7,Saito Shinji7,Wada Koji8,Fujita Retsu9,Saito Hiroki10,Okinaka Keiji11,Griffith Mathew12,Parry Amy Elizabeth12,Barnetson Brenda13,Leonard James13,Wakita Takaji2

Affiliation:

1. Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan

2. National Institute of Infectious Diseases, Tokyo, Japan

3. Antimicrobial Resistance Clinical Research Center, National Center for Global Health and Medicine, Tokyo, Japan

4. Field Epidemiology Training Program, National Institute of Infectious Diseases, Tokyo, Japan

5. Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan

6. Department of Virology III, National Institute of Infectious Diseases, Tokyo, Japan

7. Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan

8. Graduate School of Public Health, International University of Health and Welfare, Chiba, Japan

9. Graduate School of Medicine, International University of Health and Welfare, Tokyo, Japan

10. Department of Emergency and Critical Care Medicine, Yokohama City Seibu Hospital, St Marianna University School of Medicine, Yokohama, Japan

11. Division of General Internal Medicine, National Cancer Center Hospital East, Chiba, Japan

12. Health Emergency Program, World Health Organization Western Pacific Regional Office, Manila, Philippines

13. Department of Health Services, Princess Cruises, USA

Abstract

Abstract During a COVID-19 outbreak on the Diamond Princess cruise ship we sampled environmental surfaces after passengers and crew vacated cabins. SARS-CoV-2 RNA was detected in 58 of 601 samples (10%) from case cabins 1–17 days after cabins were vacated but not from noncase cabins. There was no difference in detection proportion between cabins of symptomatic (15%, 28/189; cycle quantification [Cq], 29.79–38.86) and asymptomatic cases (21%, 28/131; Cq, 26.21–38.99). No SARS-CoV-2 virus was isolated from any of the samples. Transmission risk of SARS-CoV-2 from symptomatic and asymptomatic patients may be similar and surfaces could be involved in transmission.

Publisher

Oxford University Press (OUP)

Subject

Infectious Diseases,Immunology and Allergy

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