SARS-CoV-1
The source of SARS-CoV-2 is unknown.
What does the genetic makeup of the SARS-CoV-2 virus tell us?
All the published genetic sequences of SARS-CoV-2 isolated from human cases are very similar.

SMART Vocabulary: related words and phrases

Respiratory disorders
allergic rhinitis
altitude sickness
anti-asthma
anti-tubercular
anti-tuberculosis
asthmatic
congested
Covid-19
double pneumonia
dyspnea
emphysema
farmer's lung
hacking
halitosis
shortness of breathphrase
sinusitis
sore throat
strep throat
stuffiness
tubercular