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Viral cultures, PCR Cycle threshold values and viral load estimation for COVID-19 infectious potential assessment in transplant patients: systematic review - Protocol Version 29 December 2021
Tom Jefferson; Elizabeth A Spencer; Susanna Maltoni; Jon Brassey; IGHO ONAKPOYA; Elena Cecilia Rosca; Annette Pludderman; David Evans; John Conly; Carl Heneghan.
Afiliação
  • Tom Jefferson; University of Oxford
  • Elizabeth A Spencer; University of Oxford
  • Susanna Maltoni; Division of Research and Innovation, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
  • Jon Brassey; Trip Database Ltd, Newport, UK
  • IGHO ONAKPOYA; UNIVERSITY OF OXFORD
  • Elena Cecilia Rosca; Victor Babes University of Medicine and Pharmacy of Timisoara
  • Annette Pludderman; University of Oxford
  • David Evans; University of Alberta
  • John Conly; University of Calgary and Alberta Health Services, Canada
  • Carl Heneghan; University of Oxford
Preprint em Inglês | medRxiv | ID: ppmedrxiv-21268509
ABSTRACT
This is the protocol for a systematic review focussing on people receiving solid organ or hematopoietic stem cell transplants. Our research questions are as follows What is the relationship between serial PCR Ct value or other measures of viral burden, and the likelihood and duration of the presence of infectious virus from viral culture, among transplant recipients with SARS-CoV-2 infection? What is the influence of age, sex, underlying pathologies, degree of immunosuppression, vaccination status, COVID-19 symptoms and COVID-19 disease course on viral burden and the likelihood of presence of infectious SARS-CoV-2? We will include single studies reporting serial Cts from sequential rt-PCR testing or other measures of viral burden such as RNA gene copies of respiratory samples (from nasopharyngeal specimens) along with viral culture data on the same samples, from patients about to receive a transplant or who are post transplant with SARS-CoV-2 infection.
Licença
cc_by_nc_nd
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Estudo prognóstico / Review / Revisão sistemática Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Estudo prognóstico / Review / Revisão sistemática Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
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