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Haplotype networks of SARS-CoV-2 infections in the Diamond Princess cruise ship outbreak
Tsuyoshi Sekizuka; Kentaro Itokawa; Tsutomu Kageyama; Shinji Saito; Ikuyo Takayama; Hideki Asanuma; Nao Naganori; Rina Tanaka; Masanori Hashino; Takuri Takahashi; Hajime Kamiya; Takuya Yamagishi; Kensaku Kakimoto; Motoi Suzuki; Hideki Hasegawa; Takaji Wakita; Makoto Kuroda.
Affiliation
  • Tsuyoshi Sekizuka; National Institute of Infectious Diseases
  • Kentaro Itokawa; National Institute of Infectious Diseases
  • Tsutomu Kageyama; National Institute of Infectious Diseases
  • Shinji Saito; National Institute of Infectious Diseases
  • Ikuyo Takayama; National Institute of Infectious Diseases
  • Hideki Asanuma; National Institute of Infectious Diseases
  • Nao Naganori; National Institute of Infectious Diseases
  • Rina Tanaka; National Institute of Infectious Diseases
  • Masanori Hashino; National Institute of Infectious Diseases
  • Takuri Takahashi; National Institute of Infectious Diseases
  • Hajime Kamiya; National Institute of Infectious Diseases
  • Takuya Yamagishi; National Institute of Infectious Diseases
  • Kensaku Kakimoto; National Institute of Infectious Diseases
  • Motoi Suzuki; National Institute of Infectious Diseases
  • Hideki Hasegawa; National Institute of Infectious Diseases
  • Takaji Wakita; National Institute of Infectious Diseases
  • Makoto Kuroda; National Institute of Infectious Diseases
Preprint in English | medRxiv | ID: ppmedrxiv-20041970
Journal article
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ABSTRACT
The Diamond Princess (DP) cruise ship was put under quarantine offshore Yokohama, Japan, after a passenger who disembarked in Hong Kong was confirmed as a COVID-19 case. We performed whole genome sequencing of SARS-CoV-2 directly from PCR-positive clinical specimens and conducted a haplotype network analysis of the outbreak. All tested isolates exhibited a transversion at G11083T, suggesting that SARS-CoV-2 dissemination on the DP originated from a single introduction event before the quarantine started. Although further spreading might have been prevented by quarantine, some progeny clusters were linked to transmission through mass-gathering events in the recreational areas and direct transmission among passengers who shared cabins during the quarantine. This study demonstrates the usefulness of haplotype network analysis in identifying potential infection routes. One Sentence SummaryGenome-based tracing of SARS-CoV-2 infections among passengers and crews in Diamond Princess cruise ship during the quarantine
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Full text: Available Collection: Preprints Database: medRxiv Type of study: Prognostic study Language: English Year: 2020 Document type: Preprint
Full text: Available Collection: Preprints Database: medRxiv Type of study: Prognostic study Language: English Year: 2020 Document type: Preprint
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