Maybe never. I agree with you about the vaccine, too. The first flu vaccine was discovered in 1938, and we've managed to get a 10-60% effectiveness since then. In 1976 they rushed a swine flu vaccine that made a good number of people very sick(GBS). I think Oldman is right that our best bet is to create treatments. The health care industry will love that, and it will surely make insurance premiums rise. The mask is pretty essential though. Think of it this way, if you knew there was Ebola in the area would you wear one?? To a 70-80 year old person they may fear it like Ebola. People and the economy do have to normalize. Maybe if people would choose take-out instead of sit down. Have a few friends over instead of going to the crowded dive bar. Open theaters, events and gyms, but implement safety measures. Have different school shifts. It's just a fact people may have to compromise, but Americans hate that. Maybe think of it like Great Britain during WW2. People had ration cards. They weren't allowed to get gasoline or have lights on, etc.