As it turns out, Eichenbaum did not find anything to be too concerned about in the Austin home. There were bacteria almost everywhere, but they were mostly the benign kind found in a normal environment. While most of these microorganisms are commonly found in or on our body, some that were found on the Austins' floor can produce disease -- such as shigella, staphylococcus pneumonia, or staphylococcus aureus -- if they are inhaled, ingested or touch skin breaks, Eichenbaum said. Still, nobody has gotten sick.

She offered tips on maintaining a healthy home, while not overdoing it. Having some bacteria is actually a good thing, experts say.