Youn-Jung Lee

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1. Introduction Prosthetic joint infection (PJI) is a potentially fatal complication of total joint arthroplasty (TJA). As life expectancy has increased recently, the number of older people who undergo TJA to improve their mobility has also increased. A long duration of prosthesis use, as well as comorbidities associated with advanced age, are linked to periprosthetic infections [1].

Keywords SARS-CoV-2 Delta variant Virus culture Isolation period Non-pharmaceutical interventions (NPIs) and vaccination programs have played crucial roles in mitigating a novel coronavirus disease 2019 (COVID-19) pandemic. The isolation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected individuals is one of the important and effective NPIs ( 1 Jeong YD Ejima K Kim KS Iwanami S Bento AI Fujita Y et al. Revisiting the guidelines for ending isolation for COVID-19 patients.