I will happily admit to not having a science degree. That does not mean I am not capable of reading scientific papers, or any other academic literature.
My uncle (FWIW) left school with absolutely no formal qualifications whatsoever. He ended up with a job which required him to have degree level scientific knowledge (a job he did well, and at the top of his field, for many years).
Gaining a degree is only one way to acquire knowledge. A good route, sure, but not the only way.
I had never participated in any sailing whatsoever before I signed up for a global ocean race. I learned the skills I needed as I went along - varied skills, which the dozen or so of us on the boat had to manage between us, for weeks at a time, completely out of touch with the rest of the world (e.g. crossing the southern ocean). Not for the faint hearted, sure, but perfectly possible.
People are not just the sum of their academic achievements. And you never know what you can do until you truly need to.
The science papers you hold so high (vaccination related) are a small part of what I have had to learn in order to help my child. I now know a hell of a lot more about the digestive system, general brain and cognitive functions, the immune system and auto-immune conditions, general skeletal and muscular structure, the educationsystem (and the legal hoops through which I had to jump to secure a decent education for dd1), even communication (despite my degrees in this area, dd1's has taught me/made me research and learn so much more about micro communication and communicative intent than I knew before - degrees are not the be all and end all!), Christ the list is endless.
I could have not bothered with the research for any of the above. I could have taken the cheery platitudes at face value, when I was fighting to raise concerns about dd1's when she was just 7 months old.
I could have accepted the paed's remarks when she was 22 months old, which amounted to "accept she won't change, be thankful she's quiet and not harming herself"
I could have accepted my doctors comments that gut disorders frequently occur with autism, and there's nothing to be done (upon querying the obvious pain, and the blood/undigested food in her stools)
I could have accepted her (highly experienced, very well respected) teachers report when she was 4, which was that dd1's would never learn anything in school (this was a specialised special needs school, with high staff levels)
Again, the list is endless - I've cited several examples which all needed further research at a reasonably high level across several different fields, and I've only glossed over the first 4 years of dd1's life!
I could have accepted it all, the opinions of these highly regarded professionals, and not done my own research.
I didn't.
Dd1 has her ASD dx.
Dd1's gut health is now good.
She has learned a staggering amount in school.
If, 12 years ago, as I was handed my baby, I had been to,d what I would have to do, I would have said I couldn't do it.
But I did.
Because I had to, and because no one else was going to do it for me, or (far more importantly) for dd1.