I always go with the worse.

lives longer than 5 days on none organics.3 to 5 days above 75 degrees. less then 72 hours in 90 plus degree direct sun.
infection by air,and skin cells
once infected always infected.
its bio engineered multiple virus in a corona cell.
infection will not be seasonal
its long term fatality rate will be 60% due to organ failure.
30% will die from starvation and no medication
by mid march every nation on the planet will be in shutdown.