Counting The Bugs And Bacteria, You're 'Never Home Alone' (And That's OK)
NOV 12
Ecologist Rob Dunn's new book describes the tiny life forms, helpful and risky, that live in different parts of the home, including on floors and in water faucets, basements and heating systems.

Complex ecology; some are assuredly beneficial; many.. come from You. Pets.. esp dogs have a much larger effect.
HVAC complexifies the matter (as does: the amount of mold spores 'installed' as drywall is manufactured) ... and the aftereffects, esp. if the drywall gets wet.. ... ... See? you need to know this stuff!