If immunity doesn't last long, we might have to be vaccinated regularly. Who knows how often.

"might" to "probably."

The evidence says "might".

From what I have read (and I am no expert) there are several in the works so when one comes to the market we will all know. Then we probably won't know how long it lasts until we do. Will it work the same In every one? And a lot of other questions and answers.

I seem to remember that the Salk polio vaccine required more than one shot although I can't remember how many or how far apart they needed to be. I do remember the polio years and how relieved people were when a vaccine was developed. I also remember going to my elementary school gym and lining up for a shot. I really hated shots then and I'm still not crazy about them, but when I consider the alternative it is a small price to pay. The very real concern is that if a second vaccination is needed in a month or more after the first will there be enough available to boost the immune system of those who had the first vaccine as well as to vaccinated the large numbers with the first shot as well. Sorry this is a little convoluted, but this is the sort of thing I think about at 3am when I can't get back to sleep.

“It’s freaking 3am and I’m awake!!!!”

If everyone had an app on their phone to facilitate contact tracing, we could wipe out all dangerous infectious diseases right away before they even become pandemics. I don't want to defeat Covid-19 only to lose immunity or, worse, have a new "Covid-21" appear and take hold. I'm sick of this (no pun).

Here's an article on Slate that talks about the apps.

https://slate.com/technology/2020/07/pay-americans-contact-tracing-app.html

It talks about paying people to run the apps, and that's great.

Also great, imo, would be if there were total economic and health coverage for anyone tracing to an exposure. Your phone tells you you've been exposed; you get paid time off, a place to stay if you need one, and a bonus for self-quarantining or getting tested.

I hope that COVID is a once in a century type of thing and that once it's over and done with it's gone for good. I hope to be long dead before the next pandemic of this magnitude happens again.

to come alive due to climate change. We are stressing wild animals by encroaching on their habitats, causing their defenses against pathogens to go astray, and then some of us eat those wild animals, often without taking precautions against pathogens in their blood.

COVID19, IMO, is likely just the tip of a large ice berg that we are hurtling head first toward. Look at the last 17 years, we have had SARS, MERS, ZIKA and a re-emergence of Ebola. All the while those viruse and ones that have not hit us are mutating.