Clinical Features of Patients with COVID-19 Recurrence During Hospitalization in the Omicron Variant Surge.

Background: Repeat positive results for SARS-CoV-2 by antigen detection test/RT-PCR in recovered COVID-19 patients were not very rare even when omicron variants became dominant, but the clinical features of patients with recurrent COVID-19 during hospitalization are still unclear.

Methods: The clinical characteristics of patients with recurrent COVID-19 during hospitalization were retrospectively investigated from January 2023 to December 2023.

Results: Recurrence of COVID-19 was found in 7 of 275 (2.

Clinical course of 2019 novel coronavirus disease (COVID-19) in individuals present during the outbreak on the Diamond Princess cruise ship.

We investigated the clinical course of individuals with 2019 novel coronavirus disease (COVID-19) who were transferred from the Diamond Princess cruise ship to 12 local hospitals. The conditions and clinical courses of patients with pneumonia were compared with those of patients without pneumonia. Among 70 patients (median age: 67 years) analyzed, the major symptoms were fever (64.