・Of 104 cases analyzed, 76 (73%) were asymptomatic, 41 (54%) of which had pneumonic changes on CT. Other 28 (27%) cases were symptomatic, 22 (79%) of which had abnormal CT findings. ・Asymptomatic cases showed more GGO predominance over consolidation (83%), while symptomatic cases were more likely to show a consolidation predominance over GGO (41%). ・Asymptomatic cases showed milder CT severity score than symptomatic cases.

This erratum corrects an error in the number of cases in the study. The number of cases decreased from 112 to 104. These eight cases need to be omitted from the study for the following reasons:After submission of the manuscript, three persons withdrew their consent for research on discharge. As per IRB approval documentation of the study, three people need to be omitted from the study. Authors were notified about their withdrawal from the IRB only after online publication.The authors double-counted five cases because they had different names, and different study numbers were assigned. Many of the passengers of the cruise ship spoke neither English nor Japanese, and the names they were given at the initial triage on admission later proved to not be the correct ones. The PACS system recorded these persons as different cases for their follow-up study, and the study number was differently assigned for those cases.The authors conducted calculations and statistical analysis for these 104 cases and corrected the numbers and percentages in the Results section. Other parts including Conclusion were not changed.These changes were made online on April 8, 2020. Data changes are in bold.In the first two Key Points, Of 104 cases analyzed, 76 (73%) were asymptomatic, 41 (54%) of which had pneumonic changes on CT. Other 28 (27%) cases were symptomatic, 22 (79%) of which had abnormal CT findings. Asymptomatic cases showed more GGO predominance over consolidation (83%), while symptomatic cases were more likely to show a consolidation predominance over GGO (41%).Abstract, Materials and Methods, This retrospective study comprised 104 cases (mean age, 62 years ± 16, range 25-93) with COVID-19 confirmed with RT-PCR.Abstract, Results, Of 104 cases, 76 (73%) were asymptomatic, 41 (54%) of which had lung opacities on CT. Other 28 (27%) cases were symptomatic, 22 (79%)

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