Definition
*Genus Serratia* is a group of Gram-negative bacteria known for producing a red pigment, which can sometimes cause colorful infections. *Serratia marcescens* is the most commonly known species, often found in moist environments like bathrooms and hospitals. Think of *Serratia* as the colorful rebels of the bacterial world, leaving a red trail wherever they go. While some strains are harmless, others can cause infections, especially in people with weakened immune systems. These infections can include urinary tract infections, wound infections, and pneumonia. Proper hygiene can help prevent the spread.