It's a little bit like asking a random software engineer on the street on how GPU drivers work internally: they're unlikely to have an actual informed opinion.
Getting the perspective of the software engineer is a reasonable step, and certainly better than basing your beliefs on the rankings of the insane person.
Of course, if you have access to a vaccinologist (is this a recognized profession? I checked two dictionaries and neither contain the word), you should ask them. Or you can look up their opinion online [1]. Most will agree what the doctors and nurse said.
[1] https://health.mountsinai.org/blog/esteemed-vaccinologist-we...
Now I see where you’re coming from with the suggestion to go straight to a qualified source instead of asking a bunch of random people.
Point being, it's not that straightforward unless there's someone you already know that is willing to share their contact information and they actually have the time to talk to you.
I totally see the point about going for second-best first until you know you have a question worth their time and not something that's obvious. (Although the answer in this case did seem obvious to me as a software person, or at least I'd have guessed they can see the amount of anti-covid-stuff dropping at different rates.)
Contact the department of health education of the ministry of health. You already paid for it with your taxes, might as well make use of it.
If most of the whole world came to a screeching halt for the better part of a year and the solution turned out to be GPU drivers, I as a software engineer would become intensely interested in understanding them and would not at all be surprised if my less technical friends asked me for some pointers.
In the end, my point was that people who aren't even software engineers were telling me to stop trying to understand GPU drivers because GPU drivers are a solved problem and I should just trust NVIDIA.
I don't work on operating systems but I had a CS education, so I know enough about the kinds of things it needs to worry about that I could answer about the building blocks of a kernel in a way that I feel would be largely correct.
But a neat thing about HN is that there are people here who've been to med school and can presumably chime in.
What I can tell you personally is that vaccinology seems to involve a lot of centrifuging of rabbit poop, which is something I don't think they do a lot of in med school.
It's a feature of engineering and scientific education that there is a corpus of knowledge that every person in a discipline (say EE, or medicine) is expected to have learned (if not retained). I imagine all doctors learn quite a bit about the immune system in medical school.
Given that a "random software engineer on the street" may have a CS degree, an MBA, a 6 week bootcamp, or be totally self-taught, the example isn't analogous IMO.