A Comprehensive Review of Manifestations of Novel Coronaviruses in the Context of Deadly COVID-19 Global Pandemic

Am J Med Sci. 2020 Jul;360(1):5-34. doi: 10.1016/j.amjms.2020.05.006. Epub 2020 May 11.

Abstract

Since December 2019, the global pandemic caused by the highly infectious novel coronavirus 2019-nCoV (COVID-19) has been rapidly spreading. As of April 2020, the outbreak has spread to over 210 countries, with over 2,400,000 confirmed cases and over 170,000 deaths.1 COVID-19 causes a severe pneumonia characterized by fever, cough and shortness of breath. Similar coronavirus outbreaks have occurred in the past causing severe pneumonia like COVID-19, most recently, severe acute respiratory syndrome coronavirus (SARS-CoV) and middle east respiratory syndrome coronavirus (MERS-CoV). However, over time, SARS-CoV and MERS-CoV were shown to cause extrapulmonary signs and symptoms including hepatitis, acute renal failure, encephalitis, myositis and gastroenteritis. Similarly, sporadic reports of COVID-19 related extrapulmonary manifestations emerge. Unfortunately, there is no comprehensive summary of the multiorgan manifestations of COVID-19, making it difficult for clinicians to quickly educate themselves about this highly contagious and deadly pathogen. What is more, is that SARS-CoV and MERS-CoV are the closest humanity has come to combating something similar to COVID-19, however, there exists no comparison between the manifestations of any of these novel coronaviruses. In this review, we summarize the current knowledge of the manifestations of the novel coronaviruses SARS-CoV, MERS-CoV and COVID-19, with a particular focus on the latter, and highlight their differences and similarities.

Keywords: COVID-19; Middle east respiratory syndrome coronavirus; Novel coronavirus; Severe acute respiratory syndrome coronavirus.

Publication types

  • Review

MeSH terms

  • Betacoronavirus
  • COVID-19
  • Coronavirus Infections / epidemiology
  • Coronavirus Infections / physiopathology*
  • Humans
  • Middle East Respiratory Syndrome Coronavirus
  • Pandemics
  • Pneumonia, Viral / epidemiology
  • Pneumonia, Viral / physiopathology*
  • SARS-CoV-2
  • Severe Acute Respiratory Syndrome / epidemiology
  • Severe Acute Respiratory Syndrome / physiopathology*
  • Severe acute respiratory syndrome-related coronavirus