PLE Category: Microbiology

PLE-3516

What is the most recognized antecedent cause of GBS, at least in Western countries? It is a small, motile, non-spore-forming, curved, microaerophilic Gram-negative bacilli.

PLE-3517

What is the detectable serologic marker during the window phase of hepatitis B infection?

PLE-3518

A blood culture taken from a 32-year-old G2P1, who is in her 3rd trimester and experiencing flu-like illness, reveals colonies that are small, grayish blue with beta hemolysis on a blood agar plate. The organism is Gram positive, catalase positive, motile at room temperature, and produces acids from glucose, trehalose, and salicin. What is the organism involved?

PLE-3512

An immunocompromised patient with a CD4 count of 150 complains of long-standing, non-bloody diarrhea. Upon investigation, thick-walled cysts that are acid-fast were recovered from his stools. Can this condition of the patient improve when treated with?

PLE-3513

What is the primary antibiotic of choice for anthrax?

PLE-3514

A broad-based budding yeast was isolated from a bronchoalveolar lavage sample of an elderly, immunocompromised patient. To prevent systemic dissemination of the infection, how should the patient be treated?

PLE-3515

Which autoantibody is expected to be elevated in Hashimoto’s thyroiditis, the most common cause of hypothyroidism in the world?

PLE-3506

What is the pathogenesis for the action of tetanospasmin, the toxin of Clostridium tetani, which leads to obvious signs such as risus sardonicus, opisthotonus, and trismus?

PLE-3507

In the Philippines, what is the most common cause of neonatal sepsis?