Scientists Isolate Bacteria Behind The Immune System 'Farm Effect'

2026-08-03T12:30:06.000Z For decades, scientists have theorized that kids actually need to get a bit dirty for their immune systems to develop fully, as a kind of natural protection from asthma and allergies. Now, researchers have found exactly which bacterial species mediate the 'farm' effect in rural European children. Read on below – and follow ScienceAlert for more evidence-based health news.