Can't say how it's going to end, but you can at least start by encouraging people to stop being obese and to get enough sleep. Unfortunately culture in general is not supportive of many healthy habits, and is actually generally pretty toxic and exploitative, so you can't expect much from people.
The vaccine is mostly a band aid for poor lifestyles and poor education. Sure, the elderly are at risk, but most of them don't even understand that you need to drink water every day, and that alcohol fucks your body up.
To be fair, I am a shut in anyway, so it doesn't matter much if I get the shot or not.
