For me this link results in a 503 I've read the gist of this article in my local news org feed. What it basically comes down to is that Finnish scientists noticed that Russian children who grew up in rural areas usually had way less asthma cases than Finnish city children, and thus began to research why this was the case. They hypothesized that early (first 10000 days) exposure to micro-organisms might play a key rol…
Reminds me of a dark joke I sometimes make: Why are there no Turkish people above forty with nut allergies? Because they all died in early childhood.