Int J Infect Dis 2022 Jun 24. Epub 2022 Jun 24.
Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil; Graduate Program in Medicine, Biomedical Gerontology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil; Graduate Program in Medicine, Pediatrics and Child Health, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil. Electronic address:
Objectives: The aim of this study was to evaluate the time in days between symptom onset and first positive RT-PCR result for COVID-19.
Methods: This systematic review was conducted in the MEDLINE (PubMed), Embase, and Scopus databases using the following descriptors: "COVID-19", "SARS-CoV-2", "coronavirus", "RT-PCR", "real time PCR" and "diagnosis".
Results: The included studies were conducted in 31 different countries and reported on a total of 6831 patients. Read More