List of top Microbiology Questions on Laboratory Diagnosis

To diagnose a syndromic illness like meningitis, which PCR technique is most appropriate?
A patient presents with perianal itching. A peripheral swab was taken, and the image below shows the findings. What is the most likely diagnosis?
Which is the microbiological test for diagnosing Leptospira infection?
A truck driver presented with a painless, demarcated ulcer on penis with inguinal lymphadenopathy. What is the best method of visualization of motility of the probable causative agent?
A female engineer works for 12- 14 hours a day and gives a history of consuming only fast food. There are no vegetables or fruits in his diet. Her Hb count is 9gm/dl MCV 120 fl. On examination, PS shows macrocytes. What will be the diagnosis?