PLE Category: Microbiology

PLE-3318

Which individual among the following is most likely to progress to chronic liver disease following an acute infection?

PLE-3319

Which bacterial gene transfer process would be inhibited by free extracellular exonucleases?

PLE-3314

What is the scientific name of the so-called flesh-eating bacteria, which is the most common cause of necrotizing fasciitis?

PLE-3315

An infant was brought to the emergency room appearing limp and floppy. The mother stated that she has just started to introduce table foods to her baby’s diet. A few days prior, she noted her baby to be constipated and to have diminished suckling and crying. What is the most likely cause of this condition?

PLE-3316

A 20-year-old female, who had a mild fever and cough, was diagnosed with pneumonia on chest x-ray. Gram stain of her sputum revealed normal flora, while the culture showed colonies with a fried egg appearance. What is the organism responsible for the symptoms in the patient?

PLE-3312

A gram-positive cocci was isolated from pustular skin lesions of a 5-year-old boy. If the isolate tested was beta hemolytic, catalase-negative, and bacitracin sensitive, which of the following organisms would you consider?

PLE-3313

Gastric adenocarcinoma is best associated with which organism?

PLE-3307

Which of the following diseases is caused by a virus that uses reverse transcriptase during replication?

PLE-3308

A 16-year-old female from a dormitory presents with sudden onset of fever of 40°C, severe headache, and generalized petechial rash. Physical examination reveals nuchal rigidity. CSF culture was done, revealing an organism that ferments both maltose and glucose with a large polysaccharide capsule. What is the most likely predisposing factor to your diagnosis in this case?