There is more and more research coming out on the benefits of a wide exposure to a variety of microorganisms. Below is an interesting study about the positive effects of being born into a family with dogs and cats.
University of Alberta, Canada study of 700 children (published in the journal Microbiome) found that babies exposed in the womb or born into homes with dogs and cats recorded an “abundance” of the microbes ruminococcus and oscillospira, the latter of which is associated with leanness or a lower body mass index.
It is believed that this kind of early exposure to bacteria creates a type of resistance. The study further suggests that exposure to dogs and cats significantly lowers the risk of group B strep – which causes blood infection, pneumonia and meningitis in newborns.
There is more and more research coming out on the benefits of a wide exposure to a variety of microorganisms.