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A Comparative Study on Virology, Epidemiology, and Clinical Features of SARS and COVID-19

Yanmei Zhao1, Qianying Lu1, Xiangyan Meng1

  • 1Institute of Disaster and Emergency Medicine, Tianjin University, Nankai District, Tianjin, P.R. China.

Disaster Medicine and Public Health Preparedness
|August 31, 2021
PubMed

Insights

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused the COVID-19 pandemic. This study compares SARS-CoV-2 with SARS-CoV, detailing their virology, epidemiology, and clinical features for better epidemic control.

Area of Science:

  • Virology
  • Epidemiology
  • Clinical Medicine

Background:

  • The COVID-19 pandemic, caused by SARS-CoV-2, emerged in late 2019.
  • SARS-CoV-2 is a novel zoonotic coronavirus related to SARS-CoV.
  • By October 2021, COVID-19 resulted in over 246 million infections and nearly 5 million deaths globally.

Purpose of the Study:

  • To compare the virology, epidemiology, and clinical features of SARS-CoV and SARS-CoV-2.
  • To identify commonalities and differences between the two coronaviruses.
  • To inform strategies for monitoring and controlling future coronavirus epidemics.

Main Methods:

  • Comparative analysis of scientific literature.
  • Review of virological data.
  • Examination of epidemiological trends and clinical case studies.

Main Results:

  • Detailed comparison of SARS-CoV and SARS-CoV-2 characteristics.
  • Highlighting distinct properties in viral shedding, transmission, and disease progression.
  • Identification of shared pathogenic mechanisms and host responses.

Conclusions:

  • Understanding the distinct and common properties of SARS-CoV and SARS-CoV-2 is crucial.
  • This comparative knowledge aids in developing effective surveillance and intervention strategies.
  • Preparedness for future highly pathogenic human coronavirus outbreaks is enhanced.

Keywords:
COVID-19SARSSARS-CoV-2clinical featuresepidemic

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