This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Acalculous cholecystitis can be seen in all the following conditions Except 
Select and explain. 
A. Enteric fever, B. Dengue haemorrhagic fever, C. Leptospirosis, D. Malaria
D: Malaria
Answer: D: Malaria 
Explanation: Enteric fever can be presented as cholecystitis, more frequently chronic, and the patient is a typhoid carrier excretes Salmonella typhimurium in the bile.Acalculous cholecystitis is a rare presentation of leptospirosis progressing to Weil&;s disease.Acute acalculous cholecystitis can develop secondary to dengue hemorrhagic fever