Does this effectively confirm the hygiene hypothesis ?

    The hygiene hypothesis suggests that a newborn baby's immune system must be educated so it will function properly during infancy and the rest of life.

I'm weighing the need for my (possible future) children to spend time in a 3rd world country with germs & allergens for a little bit, to avoid heavily sanitized environments throughout their early lives. That's against the increased exposure to diseases and terrible pollution.

clarification: This is ofc much easier to do when your family lives in said 3rd world country.