Well its hard to tell the effect of vaccine whether it is 50, 60, 70% rate of effectivity and no one really trust them fully, there is still money involved behind all these, so that the majority of people really believe in it, It is much better to give people something to eat, drink that can boost their immune system rather than taking this kind of vaccine which to other are not effective.
It is so hard to keep track of all these different kind of vaccines. Almost all of the big countries have their own vaccines, USA and China have 3 vaccines each already being exported. But what we don't know is how effective is each and everyone one of them. Why is it so hard to make a comparison between them? In my opinion this is politically motivated to not make these information public. If we could rank the vaccines in terms of efficency then worst vaccines probably wouldn't be used anymore as nobody would want to get it.
Covid virus is getting mutated so now we have completely different kinds of covid 19 virus from the year 2020 but these vaccines are made for the early strain but now the new strain can be resistant to the vaccines that is why efficacy is getting reducing further.
"Mutated" isn't and doesn't mean "completely different."
One might say that Covid-19/SARS-CoV-2 is a mutation of the original SARS that existed back in 2003. But the two of them are around 80% or 85% the same. Mutations of Covid-19/SARS-CoV-2 that happen here and there over a short period of days or weeks, are almost exactly the same as their parent that they mutated from.
Vaccines may not recognize mutated strains. But the immune system recognizes even Covid-19/SARS-CoV-2 because of its work on, and memory of, the original SARS.
The original SARS is simply a mutated form of the common cold. There are many mutations of the common cold. SARS happened to be one of them that was a little more aggressive. So is Covid-19/SARS-CoV-2. But the immune system stopped the original SARS. We didn't have a pandemic. Vaccines certainly didn't work.
Big Pharma wants to make money. That's why they used the media to turn Covid-19/SARS-CoV-2 into a pandemic when it really isn't. Covid-19/SARS-CoV-2 will go away on its own, except that the things that the medical are doing are making it last longer. Why will/is Covid-19/SARS-CoV-2 going away naturally? Because the immune system recognizes its similarity to the common cold, and is destroying it just like immune systems destroyed the original SARS.
The vaccine is not 50% effective at getting rid of Covid-19/SARS-CoV-2. Rather, the vaccines are probably 50% effective at making Covid-19/SARS-CoV-2 last longer. So, Fauci wasn't lying. He was simply twisting the truth in a wrong direction.