How early it should be? The earlier the exposure began, the better. Children who accompanied their parents to the stables during the first year of life had less allergy compared with children who began working on a farm at school age. As matter of fact, even prenatal exposure counts. Indeed, you could predict a child's odds of developing allergy by measuring the endotoxin in her mother's mattress.
If you're interested in learning more on endotoxin and why pet ownership can help your child's health. Read the following article:
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