From WebMD, courtesy of Fox News:So, my kids are okay if dirt from "furred animals" is somehow helpful to the immune system. If it doesn't kill them, it will make them stronger.
In his recent study, Gern analyzed the blood of babies immediately after birth and one year later. He was looking for evidence of an allergic reaction, immunity changes, and for reactions to bacteria in the environment.
If a dog lived in the home, infants were less likely to show evidence of pet allergies -- 19 percent vs. 33 percent. They also were less likely to have eczema, a common allergy skin condition that causes red patches and itching. In addition, they had higher levels of some immune system chemicals -- a sign of stronger immune system activation.
"Dogs are dirty animals, and this suggests that babies who have greater exposure to dirt and allergens have a stronger immune system," Gern says