Everyone can get infected. There is nothing available that prevents people from contracting the Covid virus. Whether someone will benefit from the vaccine depends on their personal situation, but the more at risk they are and the less they have natural immunity the more benefit the vaccine is likely to pass on. But the vaccine is not without risks and among the very young and very healthy a Singapore study concluded the vaccine risks may not justify getting the vaccine. But for most people who don't have natural immunity, some benefit should be realized from getting vaccinated. The new vaccine with released this month is even better.

I have mixed emotions regarding the mRNA technology used to produce the vaccine. Because it uses only a small part of the virus, if that small part mutates it instantly becomes less effective at preventing infection (though it imparts some additional response to any virus through the increase in T and B cells). A vaccine based on more of the virus could be harder for new mutations to evade.

I believe testing rates are exceptionally low in India and since many people are asymptomatic, it is unlikely that anyone can estimate how many Indians have contracted the virus. But the excess deaths suggest an overall death rate not dissimilar to the US if you age and risk adjust.

Doctors "practice" medicine. Often medicine outstrips science, we discover something works but don't know why. Take the vitamin supplements I mentioned before you get sick, it should help you recover. There are some other treatments including Paxlovid, steroids, etc. that have proven to help especially if taken at the right stage of the disease, the best thing is to minimize your risk that the disease will progress to a moderate or severe state.

I am sorry to hear about your heart failure. I am a heart patient having been born with several defects. I had open heart surgery a few years ago and it appears to have resolved those issues. But I am on medications for the rest of my life. But I still have to go to the hospital now and then to have my heart zapped with paddles to get my sinus rhythm normalized.

It is sad to see racial and religious conflict. Ideally people will learn to live and let live. But humans are tribal, and they seem to seek a way to segregate themselves into competing groups. I wonder when the world population begins to decline at the end of this century whether that will impact "human aggression". I won't live to see it, but perhaps I will look down from heaven now and then to see how it turns out.