Covid-19 in outpatients-Is fever a useful indicator for SARS-CoV-2 infection?

PLoS One. 2021 Feb 3;16(2):e0246312. doi: 10.1371/journal.pone.0246312. eCollection 2021.

Abstract

Objective: Understanding mild to moderate symptoms of coronavirus disease 2019 (Covid-19) is important in order to identify active cases early and thus counteract transmission.

Methods: In March 2020, Leipzig University Hospital established an outpatient clinic for patients potentially infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Confirmed cases with mild to moderate symptoms self-isolated at home and were followed-up by daily telephone calls for at least 14 days. Symptoms and course of illness of these patients are reported here.

Results: From March 20 to April 17, 2020, 1460 individuals were tested for SARS-CoV-2 by naso- or oropharyngeal swab for real-time polymerase chain reaction (RT-PCR). Covid-19 was confirmed in 91 (6.2%) patients, of which 87 were included in the final analysis. Patients presented for testing after a mean of 5.9 days (IQR = 2.0-8.5). The median age was 37.0 years (IQR = 28.5-53), and 48 (55.2%) were female. Five (5.7%) patients required hospital admission during the course of illness. Most frequently reported symptoms were fatigue (n = 64, 74%), cough (n = 58, 67%), and hyposmia/hypogeusia (n = 44, 51%). In contrast to previous reports, fever occurred in less than a third of patients (n = 25, 29%). By day 14, more than half of the patients had recovered completely (n = 37/70, 52.9%).

Conclusions: Fever seems to be less common in patients of relatively young age diagnosed with mild to moderate Covid-19. This suggests that body temperature alone may be an insufficient indicator of SARS-CoV-2 infection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anosmia / etiology
  • Body Temperature*
  • COVID-19 / complications
  • COVID-19 / diagnosis*
  • COVID-19 / virology
  • Cough / etiology
  • Fatigue / etiology
  • Female
  • Hospitalization / statistics & numerical data
  • Humans
  • Male
  • Middle Aged
  • Nasopharynx / virology
  • Outpatients
  • RNA, Viral / metabolism
  • Real-Time Polymerase Chain Reaction
  • SARS-CoV-2 / genetics
  • SARS-CoV-2 / isolation & purification

Substances

  • RNA, Viral

Grants and funding

The authors acknowledge support from Leipzig University for Open Access Publishing.