The advice has gone the opposite way here. Wheres initially, they talked about virus on surfaces and only droplets in the air to inhale, they've gone to saying that they believe it is more persistent in the air and even heavy breathing can aerosolize it.
I saw some discussion with a virologist where his opinion was that he thinks the touch-type transmissions are fairly low, and less frequent that we thought early on.
The folks who seem to be worst off by far are those working in places where there's a high viral load in the air.
He also said that the commentary about the virus being found alive on surfaces for 7 to 17 days are alarmist because they will survive that long, but there's a big difference between:
* virus existing somewhere in a great enough load to infect you
* the point were the very last little bit dies
I'd still wash my hands after mail reading, and we have done that here to date, but paper surfaces and cardboard are not ideal like that article says - non-oxidizing plastic and stainless are, so we have just been letting the mail sit for a day. I am much more wary now about staying in an area where air doesn't move and there's a lot of human traffic, though (like standing in lines at the post office, etc). From the very beginning, it's seemed like folks who get a big gush into the lungs fare far worse than those who aren't sure where they got it or who may have started with symptoms in their mouth or nose.
50% of the confirmed staff cases here in the early nursing home outbreak in washington state (where the viral load in the air would've been very high) required hospitalization, even though the average age for staff was only 44.