Initial SARS-CoV-2 PCR crossing point does not predict hospitalization and duration of PCR positivity

J Microbiol Immunol Infect. 2021 Feb;54(1):77-80. doi: 10.1016/j.jmii.2020.08.020. Epub 2020 Oct 10.

Abstract

This study aimed to determine if the crossing point of the initial positive SARS-CoV-2 PCR test correlated with patient demographics, subsequent hospitalization, or duration of positivity. Seventy-three patients with two or more positive PCR tests had a median time of 23 days to two consecutive negative results.

Keywords: COVID-19; Crossing point (Cp); Duration of positivity; Molecular testing; SARS-CoV-2.

MeSH terms

  • Adult
  • COVID-19 / diagnosis
  • COVID-19 / epidemiology
  • COVID-19 / therapy
  • COVID-19 / virology*
  • COVID-19 Testing / methods
  • COVID-19 Testing / statistics & numerical data
  • Female
  • Hospitalization / statistics & numerical data*
  • Humans
  • Kaplan-Meier Estimate
  • Linear Models
  • Male
  • Middle Aged
  • Polymerase Chain Reaction / methods
  • Polymerase Chain Reaction / statistics & numerical data*
  • Predictive Value of Tests
  • SARS-CoV-2 / isolation & purification