Common flu can enter your eye mucus membranes (harder to enter those...but it is just like your other mucus membranes...don’t rub eyes w/o washing/sanitizing hands 1st). Also, all viruses can be both “droplet” and “aerosolized”.
https://www.webmd.com/cold-and-flu/qa/how-does-a-flu-virus-make-me-sick
https://www.cdc.gov/h1n1flu/guidelines_infection_control.htm
Droplet vs. “aerosol/airborne”:
Only...this isn’t the common flu. Not even close.
This one, reportedly, can spread via sneezes, coughs, saliva and poop.
Does the common flu spread via poop?
Thus, the worry for spread in the homeless areas in CA, etc.