Coronaviruses are species in the genera of virus belonging to the subfamily Coronavirinae in the family Coronaviridae. Coronaviruses are enveloped viruses with a positive-sense RNA genome and with a nucleocapsid of helical symmetry.

Coronavirus as a possible cause of severe acute respiratory syndrome
Identification of a new human coronavirus.
A novel coronavirus associated with severe acute respiratory syndrome.
Isolation of a novel coronavirus from a man with pneumonia in Saudi Arabia
The Genome Sequence of the SARS-Associated Coronavirus
Identification of a Novel Coronavirus in Patients with Severe Acute Respiratory Syndrome
Identification of a novel coronavirus in patients with severe acute respiratory syndrome.
Characterization of a Novel Coronavirus Associated with Severe Acute Respiratory Syndrome
Isolation and characterization of viruses related to the SARS coronavirus from animals in southern China.
Clinical progression and viral load in a community outbreak of coronavirus-associated SARS pneumonia: a prospective study.