Definition
*Serratia* is a genus of bacteria, often recognized by its red pigment. *Serratia marcescens* is the most common species, often found in damp places like bathrooms and hospitals, where it can appear as a pink or red film. Think of *Serratia* as the artist of the microbial world, adding a splash of color wherever it thrives. While often harmless, some strains can cause infections, particularly in hospital settings, affecting the urinary tract, respiratory system, and wounds. Good hygiene is key to preventing its spread. It's like keeping the art supplies clean so no one gets sick from the paint!