The Species Severe Acute Respiratory Syndrome-Related Coronavirus: Classifying 2019-nCoV and Naming It SARS-CoV-2

Nat Microbiol. 2020 Apr;5(4):536-544. doi: 10.1038/s41564-020-0695-z. Epub 2020 Mar 2.

Abstract

The present outbreak of a coronavirus-associated acute respiratory disease called coronavirus disease 19 (COVID-19) is the third documented spillover of an animal coronavirus to humans in only two decades that has resulted in a major epidemic. The Coronaviridae Study Group (CSG) of the International Committee on Taxonomy of Viruses, which is responsible for developing the classification of viruses and taxon nomenclature of the family Coronaviridae, has assessed the placement of the human pathogen, tentatively named 2019-nCoV, within the Coronaviridae. Based on phylogeny, taxonomy and established practice, the CSG recognizes this virus as forming a sister clade to the prototype human and bat severe acute respiratory syndrome coronaviruses (SARS-CoVs) of the species Severe acute respiratory syndrome-related coronavirus, and designates it as SARS-CoV-2. In order to facilitate communication, the CSG proposes to use the following naming convention for individual isolates: SARS-CoV-2/host/location/isolate/date. While the full spectrum of clinical manifestations associated with SARS-CoV-2 infections in humans remains to be determined, the independent zoonotic transmission of SARS-CoV and SARS-CoV-2 highlights the need for studying viruses at the species level to complement research focused on individual pathogenic viruses of immediate significance. This will improve our understanding of virus–host interactions in an ever-changing environment and enhance our preparedness for future outbreaks.

Publication types

  • Consensus Development Conference
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Betacoronavirus / classification*
  • Betacoronavirus / genetics
  • Classification / methods
  • Coronaviridae / classification
  • Coronaviridae / genetics
  • Coronavirus Infections / epidemiology
  • Coronavirus Infections / transmission
  • Coronavirus Infections / virology
  • Genetic Variation
  • Genome, Viral
  • Humans
  • Nidovirales / classification
  • Nidovirales / genetics
  • Open Reading Frames
  • Pandemics
  • Phylogeny
  • Pneumonia, Viral / epidemiology
  • Pneumonia, Viral / transmission
  • Pneumonia, Viral / virology
  • SARS Virus / classification
  • SARS Virus / genetics
  • Severe Acute Respiratory Syndrome / epidemiology
  • Severe Acute Respiratory Syndrome / virology
  • Terminology as Topic
  • World Health Organization
  • Zoonoses

Supplementary concepts

  • COVID-19
  • severe acute respiratory syndrome coronavirus 2