Objective To evaluate whether patients with COVID-19 who have tested re-positive with the PCR test for the SARS-CoV-2 virus are infectious is a challenge in the current circumstances. A follow-up survey was conducted with healthcare personnel (HCP) who were exposed to a patient whose PCR test results for SARS-CoV-2 were re-positive 18 days after the initial confirmation of negative PCR results. Results We studied a total of 15 HCP who had contact exposures (15/15) and aerosol exposures (7/15). None of them tested positive for IgG against SARS-CoV-2 on blood examination. None of them had any symptoms during 10 days of active isolation. All PCR tests conducted using the nasopharyngeal swabs collected from the HCP on day 10 were negative. No apparent infection was found in any of the HCP who had contact exposure with and/or aerosol exposure to the patient whose PCR test results for SARS-CoV-2 were re-positive 18 days after the initial confirmation of negative results of PCR tests for SARS-CoV-2. Clinical trial: Trial Registration: No. 170, approved June 10th, 2020 by the ethics committee of Sakai City Medical Center.
【저자키워드】 COVID-19, SARS-CoV-2, healthcare personnel, PCR re-positive, 【초록키워드】 IgG, Infection, Symptom, Nasopharyngeal swab, clinical, Patient, Isolation, Follow-up, PCR test, Blood, Contact, city, center, Negative PCR, aerosol exposure, positive, objective, hcp, initial, Result, tested, collected, evaluate, the patient, approved, conducted, patients with COVID-19, Sakai, the ethics committee, the SARS-CoV-2 virus, 【제목키워드】 Patient, Effect, Assessing,