Which of the following is NOT a common clinical sign of leptospirosis?

Leptospirosis is a zoonotic disease caused by the Leptospira bacteria, and its clinical signs can vary widely in severity. Common symptoms include fever, jaundice, and kidney failure.

Fever is a hallmark sign due to the body's response to the infection, while jaundice occurs when the liver is affected, leading to elevated bilirubin levels. Kidney failure can occur as the bacteria can damage renal tissues and affect kidney function.

Joint swelling is less characteristic of leptospirosis and is not commonly reported as a clinical sign of the disease. While joint pain may be associated with some infections, the most prevalent signs associated with leptospirosis involve fever, liver function impairment, and renal complications. Therefore, it is accurate to identify joint swelling as not being among the common clinical manifestations of leptospirosis.