SARS-CoV-2, COVID-19, novel coronavirus, nCoV



The name is derived from the Latin word corona, which means "crown".





It refers to the characteristic appearance of the virion via electron microscopy, which have a fringe of large, bulbous surface projections creating a crown-resembling image.





The newly emerged coronavirus is one of a group of coronaviruses that measure approximately 120 nm (1 nm = 1/1000,000,000 metre) in diameter.





Three types of this group emerged in humans since 2002.





The first emerged in 2002, and was known as SARS ( S evere A cute R espiratory S yndrome) coronavirus.





The second emerged in 2012, and was known as MERS ( M iddle E ast R espiratory S yndrome) coronavirus.





The third emerged in late 2019, which is closely related to SARS coronavirus, later named Severe Acute Respiratory Syndrome coronavirus 2 ( SARS-CoV-2 ), COVID-19 , or novel coronavirus ( nCoV ).





COVID-19 common symptoms:





Fever, cough, and shortness of breath.





Less common symptoms:





A running nose and sore throat.





In severe cases:





Pneumonia and multi-organ failure.





Incubation period:





Ranges from one to 14 days with an estimated median incubation period of 5 to 6 days according to the WHO.





Prevention:





Regular hand washing, covering mouth and nose when coughing and sneezing, cooking meat and eggs well and avoiding close contact with people showing the above common symptoms.





Medication:



