Is playing in the dirt good for kids' immune systems?

Mar 22, 2020
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Wow, this is just telling us what we've known for many decades, I was raised on this basis.
How is this news?
I've known this for over 50 years and I'm no medical professional.
On the other hand this is not surprising at all, fashion and medicine both have 'fads', previous knowledge/designs get out of favour only to return when someone else rediscovers it whilst thinking it's something new..
 
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