The Experts below are selected from a list of 6678 Experts worldwide ranked by ideXlab platform
Hajime Kamiya - One of the best experts on this subject based on the ideXlab platform.
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haplotype networks of sars cov 2 infections in the diamond princess Cruise Ship outbreak
Proceedings of the National Academy of Sciences of the United States of America, 2020Co-Authors: Tsuyoshi Sekizuka, Kentaro Itokawa, Tsutomu Kageyama, Shinji Saito, Ikuyo Takayama, Hideki Asanuma, Rina Tanaka, Masanori Hashino, Takuri Takahashi, Hajime KamiyaAbstract:The Diamond Princess Cruise Ship was put under quarantine offshore Yokohama, Japan, after a passenger who disembarked in Hong Kong was confirmed as a coronavirus disease 2019 case. We performed whole-genome sequencing of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) directly from PCR+ clinical specimens and conducted a phylogenetic analysis of the outbreak. All tested isolates exhibited a transversion at G11083T, suggesting that SARS-CoV-2 dissemination on the Diamond Princess originated from a single introduction event before the quarantine started. Although further spreading might have been prevented by quarantine, some progeny clusters could be 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/phylogeny analysis in identifying potential infection routes.
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initial investigation of transmission of covid 19 among crew members during quarantine of a Cruise Ship yokohama japan february 2020
Morbidity and Mortality Weekly Report, 2020Co-Authors: Kensaku Kakimoto, Hajime Kamiya, Takuya Yamagishi, Tamano Matsui, Motoi Suzuki, Takaji WakitaAbstract:An outbreak of coronavirus disease 2019 (COVID-19) among passengers and crew on a Cruise Ship led to quarantine of approximately 3,700 passengers and crew that began on February 3, 2020, and lasted for nearly 4 weeks at the Port of Yokohama, Japan (1). By February 9, 20 cases had occurred among the Ship's crew members. By the end of quarantine, approximately 700 cases of COVID-19 had been laboratory-confirmed among passengers and crew. This report describes findings from the initial phase of the Cruise Ship investigation into COVID-19 cases among crew members during February 4-12, 2020.
Emanuela Missanelli - One of the best experts on this subject based on the ideXlab platform.
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investigation of green practices for paper use reduction onboard a Cruise Ship a life cycle approach
International Journal of Life Cycle Assessment, 2015Co-Authors: Carlo Strazza, Roberta Manariti, Michela Gallo, Adriana Del Borghi, Emanuela MissanelliAbstract:The aim of this paper is to analyse the potential green practices that can be adopted onboard a Cruise Ship in order to enhance the environmental performance of the Cruise with particular attention to paper input and output flows in a waste minimization perspective. A comparative life cycle assessment (LCA) of management scenarios of paper streams onboard a Cruise Ship is performed. The potential environmental impacts due to three strategic choices about paper and paper waste management onboard a case-study Ship have been investigated through a so-called difference analysis, i.e. the digitalization of the daily information journal Today, the reduction of toilet paper and paper towels through the installation of auto-cut single extraction dispensers and the reduction of printing paper through dissemination of specific guidelines. In order to compare each scenario with the reference case in absence of the practice implementation, the functional unit in this study has been defined as 1 day of Cruise. The implementation of the analysed green practices show comparable environmental benefits onboard a pilot Ship, on the basis the set of assumptions and hypothesis identified in this simulation. In particular, when comparing the potential GHG emission reductions, it results that the two most realistically feasible scenarios in the communication area, i.e. digitalization of 25 and 50 % shares of Today journal, show environmental savings comparable to measures related to reduction of consumables and guidelines for personnel. Nevertheless, the addition of a reasonable number of touch-screen devices for this purpose would not significantly influence the environmental impacts. A set of reduction measures of paper items onboard a Cruise Ship is able to both avoid the impacts related to production and incineration stages. In the form of forecast scenarios, the results of such modelization may represent a set of indicators to be considered in a feasibility analysis prior to selection of the green practices to be introduced, as a support to decisions for Cruise managers.
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Investigation of green practices for paper use reduction onboard a Cruise Ship—a life cycle approach
International Journal of Life Cycle Assessment, 2015Co-Authors: Carlo Strazza, Roberta Manariti, Adriana Del Borghi, Michela Gallo, Emanuela MissanelliAbstract:The aim of this paper is to analyse the potential green practices that\ncan be adopted onboard a Cruise Ship in order to enhance the\nenvironmental performance of the Cruise with particular attention to\npaper input and output flows in a waste minimization perspective.\nA comparative life cycle assessment (LCA) of management scenarios of\npaper streams onboard a Cruise Ship is performed. The potential\nenvironmental impacts due to three strategic choices about paper and\npaper waste management onboard a case-study Ship have been investigated\nthrough a so-called difference analysis, i.e. the digitalization of the\ndaily information journal Today, the reduction of toilet paper and paper\ntowels through the installation of auto-cut single extraction dispensers\nand the reduction of printing paper through dissemination of specific\nguidelines. In order to compare each scenario with the reference case in\nabsence of the practice implementation, the functional unit in this\nstudy has been defined as 1 day of Cruise.\nThe implementation of the analysed green practices show comparable\nenvironmental benefits onboard a pilot Ship, on the basis the set of\nassumptions and hypothesis identified in this simulation. In particular,\nwhen comparing the potential GHG emission reductions, it results that\nthe two most realistically feasible scenarios in the communication area,\ni.e. digitalization of 25 and 50 % shares of Today journal, show\nenvironmental savings comparable to measures related to reduction of\nconsumables and guidelines for personnel. Nevertheless, the addition of\na reasonable number of touch-screen devices for this purpose would not\nsignificantly influence the environmental impacts.\nA set of reduction measures of paper items onboard a Cruise Ship is able\nto both avoid the impacts related to production and incineration stages.\nIn the form of forecast scenarios, the results of such modelization may\nrepresent a set of indicators to be considered in a feasibility analysis\nprior to selection of the green practices to be introduced, as a support\nto decisions for Cruise managers.
Tsuyoshi Sekizuka - One of the best experts on this subject based on the ideXlab platform.
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haplotype networks of sars cov 2 infections in the diamond princess Cruise Ship outbreak
Proceedings of the National Academy of Sciences of the United States of America, 2020Co-Authors: Tsuyoshi Sekizuka, Kentaro Itokawa, Tsutomu Kageyama, Shinji Saito, Ikuyo Takayama, Hideki Asanuma, Rina Tanaka, Masanori Hashino, Takuri Takahashi, Hajime KamiyaAbstract:The Diamond Princess Cruise Ship was put under quarantine offshore Yokohama, Japan, after a passenger who disembarked in Hong Kong was confirmed as a coronavirus disease 2019 case. We performed whole-genome sequencing of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) directly from PCR+ clinical specimens and conducted a phylogenetic analysis of the outbreak. All tested isolates exhibited a transversion at G11083T, suggesting that SARS-CoV-2 dissemination on the Diamond Princess originated from a single introduction event before the quarantine started. Although further spreading might have been prevented by quarantine, some progeny clusters could be 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/phylogeny analysis in identifying potential infection routes.
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haplotype networks of sars cov 2 infections in the diamond princess Cruise Ship outbreak
medRxiv, 2020Co-Authors: Tsuyoshi Sekizuka, Kentaro Itokawa, Tsutomu Kageyama, Shinji Saito, Ikuyo Takayama, Hideki Asanuma, Rina Tanaka, Masanori Hashino, Nao Naganori, Takuri TakahashiAbstract: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.
Akira Nakamura - One of the best experts on this subject based on the ideXlab platform.
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COVID-19 in 2 Persons with Mild Upper Respiratory Symptoms on a Cruise Ship, Japan.
Emerging infectious diseases, 2020Co-Authors: Takeshi Arashiro, Keiichi Furukawa, Akira NakamuraAbstract:We describe 2 cases of COVID-19 in patients with mild upper respiratory symptoms. Both patients worked on a Cruise Ship quarantined off the coast of Japan. One patient had persistent, low-grade upper respiratory tract symptoms without fever. The other patient had rapid symptom cessation but persistent viral RNA detection.
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covid 19 in 2 persons with mild upper respiratory symptoms on a Cruise Ship japan
Emerging Infectious Diseases, 2020Co-Authors: Takeshi Arashiro, Keiichi Furukawa, Akira NakamuraAbstract:We describe 2 cases of coronavirus disease in patients with mild upper respiratory symptoms. Both patients worked on a Cruise Ship quarantined off the coast of Japan. One patient had persistent, low-grade upper respiratory tract symptoms without fever. The other patient had rapid symptom cessation but persistent viral RNA detection.
Carlo Strazza - One of the best experts on this subject based on the ideXlab platform.
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investigation of green practices for paper use reduction onboard a Cruise Ship a life cycle approach
International Journal of Life Cycle Assessment, 2015Co-Authors: Carlo Strazza, Roberta Manariti, Michela Gallo, Adriana Del Borghi, Emanuela MissanelliAbstract:The aim of this paper is to analyse the potential green practices that can be adopted onboard a Cruise Ship in order to enhance the environmental performance of the Cruise with particular attention to paper input and output flows in a waste minimization perspective. A comparative life cycle assessment (LCA) of management scenarios of paper streams onboard a Cruise Ship is performed. The potential environmental impacts due to three strategic choices about paper and paper waste management onboard a case-study Ship have been investigated through a so-called difference analysis, i.e. the digitalization of the daily information journal Today, the reduction of toilet paper and paper towels through the installation of auto-cut single extraction dispensers and the reduction of printing paper through dissemination of specific guidelines. In order to compare each scenario with the reference case in absence of the practice implementation, the functional unit in this study has been defined as 1 day of Cruise. The implementation of the analysed green practices show comparable environmental benefits onboard a pilot Ship, on the basis the set of assumptions and hypothesis identified in this simulation. In particular, when comparing the potential GHG emission reductions, it results that the two most realistically feasible scenarios in the communication area, i.e. digitalization of 25 and 50 % shares of Today journal, show environmental savings comparable to measures related to reduction of consumables and guidelines for personnel. Nevertheless, the addition of a reasonable number of touch-screen devices for this purpose would not significantly influence the environmental impacts. A set of reduction measures of paper items onboard a Cruise Ship is able to both avoid the impacts related to production and incineration stages. In the form of forecast scenarios, the results of such modelization may represent a set of indicators to be considered in a feasibility analysis prior to selection of the green practices to be introduced, as a support to decisions for Cruise managers.
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Investigation of green practices for paper use reduction onboard a Cruise Ship—a life cycle approach
International Journal of Life Cycle Assessment, 2015Co-Authors: Carlo Strazza, Roberta Manariti, Adriana Del Borghi, Michela Gallo, Emanuela MissanelliAbstract:The aim of this paper is to analyse the potential green practices that\ncan be adopted onboard a Cruise Ship in order to enhance the\nenvironmental performance of the Cruise with particular attention to\npaper input and output flows in a waste minimization perspective.\nA comparative life cycle assessment (LCA) of management scenarios of\npaper streams onboard a Cruise Ship is performed. The potential\nenvironmental impacts due to three strategic choices about paper and\npaper waste management onboard a case-study Ship have been investigated\nthrough a so-called difference analysis, i.e. the digitalization of the\ndaily information journal Today, the reduction of toilet paper and paper\ntowels through the installation of auto-cut single extraction dispensers\nand the reduction of printing paper through dissemination of specific\nguidelines. In order to compare each scenario with the reference case in\nabsence of the practice implementation, the functional unit in this\nstudy has been defined as 1 day of Cruise.\nThe implementation of the analysed green practices show comparable\nenvironmental benefits onboard a pilot Ship, on the basis the set of\nassumptions and hypothesis identified in this simulation. In particular,\nwhen comparing the potential GHG emission reductions, it results that\nthe two most realistically feasible scenarios in the communication area,\ni.e. digitalization of 25 and 50 % shares of Today journal, show\nenvironmental savings comparable to measures related to reduction of\nconsumables and guidelines for personnel. Nevertheless, the addition of\na reasonable number of touch-screen devices for this purpose would not\nsignificantly influence the environmental impacts.\nA set of reduction measures of paper items onboard a Cruise Ship is able\nto both avoid the impacts related to production and incineration stages.\nIn the form of forecast scenarios, the results of such modelization may\nrepresent a set of indicators to be considered in a feasibility analysis\nprior to selection of the green practices to be introduced, as a support\nto decisions for Cruise managers.