Microbiology Bacteria f3c731fb Dark field microscopy is used for - A Syphilic B Leprosy C Histoplasmosis D Capsule High-Yield Explanation Ans. is 'a' i.e., Syphilic * Dark ground (dark field) microscopy is used for -# Flagella# SpirochetesNote: T pallidum (causative agent of syphilis) is a spirochete.