Leptospirosis is a kind of bacterial disease caused by a bacterium called Leptospira interrogans that affects both humans and animals. The symptoms of leptospirosis are high fever, headache, chills, muscle aches, vomiting, and abdominal pain. When leptospirosis is left untreated, it can result in kidney damage, meningitis, and even death.
Leptospirosis, a Bacterial Disease - Things You Need to Know
It is a bacterial infection, where humans get infected from contaminated water and show flu-like symptoms.

Icteric Leptospirosis - Causes, Symptoms, Diagnosis, and Treatment
A severe variation of the bacterial infection known as leptospirosis is the rare infectious condition known as icteric leptospirosis.