This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Weils' disease is caused by - 
Select and explain. 
A. Leptospira, B. Listeria, C. Mycoplasma, D. Legionella
A: Leptospira
Answer: A: Leptospira 
Explanation: Ans. is 'a' i.e., Leptospira Leptospirosis and Weil's diseaseo Incubation period -o 1 - 2 weeks.o Leptospirosis may present as one of the two clinical types :# Anicteric form # Icteric form (Weil's disease)Laboratory findingso Tesro Leukocytosiso Mild thrombocytopeniao T Serum bilirubin and alkaline phosphataseo Increased prothrombin timeo BUN and creatinine may be raised.