E. coli is gram-negative (-ve) rod-shaped bacteria.

A gram negative organism that causes variety of diseases

1. E. coli  is the normal flora of the human body. The primary habitat of  E. coli  is in the gastrointestinal (GI) tract of humans and many other warm-blooded animals. E. coli  is also found in human feces This organism is associated with a variety of diseases, including gastroenteritis and extra-intestinal infections such as UTIs, meningitis, and sepsis. Clinical Manifestations of  E. coli Gastroenteritis watery or bloody diarrhea vomiting cramps nausea low-grade fever dehydration abdominal cramps Escherichia coli Reference: https://microbenotes.com/escherichia-coli-e-coli/