Moisture and Mold Growth Mold
Mold spores are already present throughout your home. They can be microscopic in size and dormant. They can already be on any surface from fabrics to the wall studs.
Flooding of any kind can trigger rapid mold growth, especially mold growth behind your walls. It does not matter if the flooding source was a broken freshwater pipe or dirty water from a stream that rose above its banks. The moisture triggers the growth of the mold in your home. If you detect any smelly odor that smells like mildew, you have a mold problem that could benefit from professional mold remediation.
Mold removal typically begins with drying everything that got wet, including the use of commercial dehumidification units that can remove 15 gallons of moisture or more that is present in the ambient air.