• Int. J. Antimicrob. Agents · Dec 2020

    Pattern of SARS-CoV-2 infection among dependant elderly residents living in long-term care facilities in Marseille, France, March-June 2020.

    • Tran Duc Anh Ly, Didier Zanini, Vincent Laforge, Sylvie Arlotto, Stephanie Gentile, Helene Mendizabal, Michael Finaud, David Morel, Olivier Quenette, Priscilla Malfuson-Clot-Faybesse, Alain Midejean, Phuc Le-Dinh, Gérard Daher, Berengere Labarriere, Anne-Marie Morel-Roux, Alain Coquet, Patrick Augier, Philippe Parola, Eric Chabriere, Didier Raoult, and Philippe Gautret.
    • Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France.
    • Int. J. Antimicrob. Agents. 2020 Dec 1; 56 (6): 106219.

    ObjectivesThis study aimed to report the results of SARS-CoV-2 PCR-based screening campaigns conducted on dependent elderly residents (compared with staff members) in long-term care facilities (LTCFs) in Marseille, France, and the follow-up of positive cases.MethodsData from 1691 elderly residents and 1000 members of staff were retrospectively collected through interviewing the medical teams in 24 LTCFs and using the hospitals' electronic health recording systems.ResultsElderly residents were predominantly female (64.8%) with a mean age of 83.0 years. SARS-CoV-2 detection among residents (226, 13.4%) was significantly higher than among staff members (87, 8.7%) (P < 0.001). Of the 226 infected residents, 37 (16.4%) were detected on a case-by-case basis due to their COVID-19 symptoms and 189 (83.6%) were detected through mass screening. Most (77.0%) had possible COVID-19 symptoms, including respiratory symptoms and signs (44.5%) and fever (46.5%); 23.0% were asymptomatic. A total of 116 (51.4%) patients received a course of oral hydroxychloroquine and azithromycin (HCQ-AZM) for ≥ 3 days; 47 (20.8%) died. Through multivariate analysis, the death rate was positively associated with being male (30.7% vs. 14.0%, OR = 3.95, P = 0.002), aged > 85 years (26.1% vs. 15.6%, OR = 2.43, P = 0.041) and receiving oxygen therapy (39.0% vs. 12.9%, OR = 5.16, P < 0.001) and negatively associated with being diagnosed through mass screening (16.9% vs. 40.5%, OR = 0.20, P= 0.001) and receiving HCQ-AZM treatment ≥ 3 days (15.5% vs. 26.4%, OR = 0.37, P = 0.02).ConclusionThe high proportion of asymptomatic COVID-19 patients and independent factors for mortality suggest that early diagnosis and treatment of COVID-19 patients in LTCFs may be effective in saving lives.Copyright © 2020 Elsevier Ltd and International Society of Antimicrobial Chemotherapy. All rights reserved.

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