How does the new coronavirus compare with the flu? | Live Science
This article (references studies from peer reviewed journals) states that flu has an infection rate, (measured by how many people each infected person will infect and called R0) of R0 = 1.2. Preliminary studies suggest Coronavirus has an infection rate of R0 = 2 - 3, so its roughly twice as infectious as the flu. Which kills many thousands every year. It also has a significantly higher mortality rate. So, easier to catch than the flu and significantly more deadly according to the data so far.
If you have any source that contradicts those figures I’ll happily take a look.