Gross stuff which is actually a collection of microorganisms. And reading further, there's the idea that our exposure to this gross stuff may be beneficial and

Gross stuff which is actually a collection of microorganisms. And reading further, there's the idea that our exposure to this gross stuff may be beneficial and one of the few ways we're still exposed to it. Or harmful. Very interesting stuff in my opinion. Have studies like this been made more accessible due to cheaper sequencing?