This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Filarial stage of adult worms responsible for diseases in all of the following except: 
Select and explain. 
A. Onchocerca volvulus, B. Brugia, C. Wuchereria, D. Mansonella ozzardi
D: Mansonella ozzardi
Answer: D: Mansonella ozzardi 
Explanation: Ans. (d) Mansonella ozzardi Mansonella Ozzardi M. ozzardi is a new world filaria seen only in central and south America and the West Indies. The adult worms live in the body cavities of humans, mainly in peritoneum, less often in pleura, and rarely in pericardium. The microfilariae are unsheathed and nonperiodic. Vectors are Culicoides species. Infection does not cause any illness.