You can't cough with a vent installed. They have to opioid you so you wont cough. That and the physical abrasion causes the problems for someone already sick enough to need one.
About 60 million people in the US had H1N1 in 2009-2010. But it doesn't matter now. Manufacturing has slowed 75%, crops are rotting in the fields, unemployment is spreading faster than the disease ever had the potential to spread, so you and lazy just keep typing about how we're all going to die while people who don't live in Toronto and New York City have to wonder what the next 10 years is going to look like without jobs, businesses, food, clothing, shelter, access to sanity, and government restraint, all the while looking forward to the next epidemic and the response to that one.
And in contrast, today there are 22,106, so you'd better get busy killing some people. We're all out of work (except you), our businesses have been destroyed, the government has instituted a fucking police state, and people are ratting each other out to the cops. We are all sick of your bullshit. You keep trying to have the same conversation, and it's tiresome.