PLE Category: Microbiology

PLE-3059

What is the preferred method for specimen collection to recover Enterobius vermicularis?

PLE-3060

A 85-year-old male admitted at the ICU was on high-lipid fluids and developed septicemia. What is the most likely causative agent?

PLE-3056

A 36-year-old female drug abuser has an abscess with draining pus on her jaw where she lost a tooth from being struck in the face 2 weeks ago. She did not get medical help. You lance the lesion, express some lumpy material with difficulty, and send a swab of the organism to the lab for Gram stain, culture, and susceptibilities. The predominant organism in the Gram stain is a filamentous bacterium that is Gram positive, yet nothing grows in the lab. What is the most likely explanation for why it did not grow?

PLE-3054

A 5-year-old unimmunized boy presented with a 2-day history of headache, earache, and swallowing difficulty. Physical examination showed bilateral swelling of the parotid glands. What is the genetic nature of the pathogen causing his disease?

PLE-3055

What is the mechanism of action of aminoglycosides?

PLE-3052

Which of the following may be present in secondary syphilis?

PLE-3053

What compound is only found in Gram-positive bacteria?

PLE-3048

What is true about influenza viruses?

PLE-3049

Which organism uses Pila luzonica as its second intermediate host?