In severe case of which of the following disease, surgical removal...

Typhoid is an infectious disease caused by the bacterium $Salmonellatyphi$. In some individuals, the bacteria can persist in the gall bladder even after recovery, making them chronic carriers of the disease (e.g., Typhoid Mary). In severe cases where chronic carriers do not respond to antibiotic therapy and pose a significant public health risk, surgical removal of the gall bladder (cholecystectomy) is performed to eliminate the source of the bacteria.

Answer: Typhoid