Actually SARS-1 virus in 2003 had anti-body immunity measured at about ~24months. Most flu virus’s immunity only lasts about 8 months. The human body SUCKS at remembering COVID type virus’s, and yes, you can get both the flu (and prob) COVID-19 repeatedly. I have no idea where people get the idea this is a one and done virus.
My feeling is that we will all have an experience with COVID-19. Most of us (esp under the age of 60) will get it, have no idea, and be done with it. This will be repeated bi-annually (24-36 months) unless the virus mutates away from us (if ever).
Every year a few will get sick, and a even smaller number need hospitalization. We already have a MUCH MUCH better idea how to treat this disease (notice no one talks about ventilators anymore, they were a mistake). A very small number of people, overwhelmingly over 65, will die of it. Some people may be able to hold out for a vaccine, maybe, but I doubt it’ll be more than 50-60% effective, will last more than 1-2 years (so you’ll get it annually) and will have other side effects that will mean some people shouldn’t be taking it. Even if there is a great vaccine, it will be like the measles, hiding just out of sight and constantly flaring up when people get dumb and don’t vaccinate.
The reality is everyone’s life expectancy just got alittle bit shorter and we as a country need to realize this and deal with it. This is why we have the WHO and normal health protocols where we praise Dr’s for finding these things early, not arrest them. The time to stop a disease like this is when it is first discovered. China blew that one and everyone pays for it.