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ESCMID guidelines on testing for SARS-CoV-2 in asymptomatic individuals to prevent transmission in the health care setting.
Carrara, Elena; Ong, David S Y; Hussein, Khetam; Keske, Siran; Johansson, Anders F; Presterl, Elisabeth; Tsioutis, Constantinos; Tschudin-Sutter, Sarah; Tacconelli, Evelina.
  • Carrara E; Division of Infectious Diseases, Department of Diagnostics and Public Health, University of Verona, Italy; European Committee on Infection Control (EUCIC), Basel, Switzerland. Electronic address: elena.carrara@univr.it.
  • Ong DSY; Department of Medical Microbiology and Infection Control, Franciscus Gasthuis & Vlietland, Rotterdam, Netherlands; Department of Epidemiology, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands; ESCMID Study Group for Respiratory Virus
  • Hussein K; European Committee on Infection Control (EUCIC), Basel, Switzerland; The Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel; Infection Control Unit, Rambam Health Care Campus, Haifa, Israel.
  • Keske S; European Committee on Infection Control (EUCIC), Basel, Switzerland; Department of Infectious Diseases and Clinical Microbiology, Koç University School of Medicine, Istanbul, Turkey.
  • Johansson AF; European Committee on Infection Control (EUCIC), Basel, Switzerland; Department of Clinical Microbiology and the Laboratory for Molecular Infection Medicine Sweden, Umeå University, Umeå, Sweden.
  • Presterl E; European Committee on Infection Control (EUCIC), Basel, Switzerland; Department of Infection Control and Hospital Epidemiology, Medical University of Vienna, Vienna, Austria.
  • Tsioutis C; European Committee on Infection Control (EUCIC), Basel, Switzerland; School of Medicine, European University Cyprus, Nicosia, Cyprus.
  • Tschudin-Sutter S; Division of Infectious Diseases & Hospital Epidemiology, University Hospital Basel and University of Basel, Basel, Switzerland.
  • Tacconelli E; Division of Infectious Diseases, Department of Diagnostics and Public Health, University of Verona, Italy; European Committee on Infection Control (EUCIC), Basel, Switzerland.
Clin Microbiol Infect ; 28(5): 672-680, 2022 May.
Article in English | MEDLINE | ID: covidwho-1729650
ABSTRACT
SCOPE This guideline addresses the indications for direct testing of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in asymptomatic individuals in health care facilities, with the aim to prevent SARS-CoV-2 transmissions in these settings. The benefit of testing asymptomatic individuals to create a safe environment for patients and health care workers must be weighed against potential unintended consequences, including delaying necessary treatments owing to false positive results and lower quality of care owing to strict isolation measures.

METHODS:

A total of nine PICOs (population, intervention, comparison, outcome) on the topic of testing asymptomatic individuals was selected by the panel members. Subsequently, a literature search for existing guidelines and systematic reviews was performed on PubMed, Epistemonikos, and RecMap using relevant filters available in each database. Data on article/recommendation type, setting, target population, intervention, and quality of the evidence were extracted. Credibility of the systematic reviews was evaluated using the AMSTAR tool, and level of agreement with available recommendation was evaluated with the AGREE II score. Because the evidence available from systematic reviews was deemed insufficiently updated to formulate relevant recommendations, an additional search targeting relevant guidance documents from major public health institutions and original studies was performed. Provisional recommendations were discussed via web conferences until agreement was reached, and final recommendations were formulated according to the GRADE approach.

RECOMMENDATIONS:

Recommendations were formulated regarding systematic testing in asymptomatic individuals upon admission to a health care setting, during hospital stay, before elective procedures, and before scheduled nonsurgical procedures. Moreover, recommendations regarding testing of asymptomatic visitors, personal caregivers, and health care workers in health care facilities were presented. Recommendations also were given on contact tracing in asymptomatic patients or health care workers and the possibility of a negative screening test to shorten the quarantine period. Furthermore, if applicable, recommendations were specified to transmission rate and vaccination coverage.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Type of study: Diagnostic study / Experimental Studies / Prognostic study / Reviews / Systematic review/Meta Analysis Topics: Vaccines Limits: Humans Language: English Journal: Clin Microbiol Infect Journal subject: Communicable Diseases / Microbiology Year: 2022 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Type of study: Diagnostic study / Experimental Studies / Prognostic study / Reviews / Systematic review/Meta Analysis Topics: Vaccines Limits: Humans Language: English Journal: Clin Microbiol Infect Journal subject: Communicable Diseases / Microbiology Year: 2022 Document Type: Article