What is herd immunity and will it affect the pandemic?

I wonder how many anti-vaxxers are hoping for a covid19 vaccine. You certainly don’t here the anti-vaxxers voices these days.

Where is the proof of herd immunity?

Not a single case is nentioned

Do you ask for proof also for the microbial origin of infections? Herd immunity is a well characterized phenomenon described for infectious diseases after natural and man-made immunization. Countless cases can be found where outbreaks finish even if some percentage of people are still susceptible to infection.

Also, viruses continually mutate so even if it were a proven phenomenon, it would have little bearing on Nocov-19, a continually mutating virus.

That is irrelevant, RNA viruses mutate all the time, but vaccines still work against them because not all mutations alter the effect of antibodies, if you take a sample of Yellow Fever viruses from a single patient you would find dozens of variants with many different mutations, an all of them would be neutralized by a single vaccine.

2 medical experts discuss the virus. Some real interesting stuff here

https://www.youtube.com/watch?v=lWOYj8hjjjM

There are many examples of herd immunity. One can look it up online. An example is the swine flu (aka Spanish Flu) epidemic of 1918 and 1919. A vaccine was never developed, but after two years the disease became much less widespread in the population.

I would like to point out that with the flu of 1918 and 1919, after a respite during the northern summer of 1918, it came back with a vengeance once the weather cooled off again. In fact, most fatalities occurred in 1919. In the end, somewhere around 4% of all the people on Earth died. If that happens again, we will see 300,000,000 fatalities.

Where is the proof of herd immunity?

Not a single case is nentioned

Also, viruses continually mutate so even if it were a proven phenomenon, it would have little bearing on Nocov-19, a continually mutating virus...