This virus is not SARS, it’s not MERS, and it’s not influenza. It is a unique virus with unique characteristics.
Both COVID-19 and influenza cause respiratory disease and spread the same way, via small droplets of fluid from the nose and mouth of someone who is sick.
However, there are some important differences between COVID-19 and influenza.
First, COVID-19 does not transmit as efficiently as influenza, from the data we have so far.
With influenza, people who are infected but not yet sick are major drivers of transmission, which does not appear to be the case for COVID-19.
Evidence from China is that only 1% of reported cases do not have symptoms, and most of those cases develop symptoms within 2 days.
Some countries are looking for cases of COVID-19 using surveillance systems for influenza and other respiratory diseases.