10 Questions
What is the primary method used to screen for group B streptococcus (GBS) infection in pregnant women?
Rectal and vaginal swab
Which antibiotic is the agent of choice for intrapartum antibiotic prophylaxis to prevent early-onset GBS disease in infants?
Penicillin
What is the typical colony morphology of Streptococcus pneumoniae on blood agar plates?
Small, translucent colonies with alpha-hemolysis
What is the primary site of colonization for Streptococcus pneumoniae in the human body?
Nasopharynx
Which of the following is not a type of non-invasive pneumococcal disease?
Meningitis
What is the purpose of the capsule swelling test in the laboratory diagnosis of pneumococcal pneumonia?
To identify the specific serotype of Streptococcus pneumoniae
Which of the following is a characteristic of the Gram stain appearance of Streptococcus pneumoniae?
Gram-positive cocci in pairs with a slightly sharp-pointed capsule
What is the primary mechanism by which Streptococcus pneumoniae is transmitted between individuals?
Inhalation of respiratory droplets or aerosols
What is the primary reason for the development of a vaccine against Streptococcus agalactiae (group B streptococcus) in pregnant women?
Both (a) and (b)
Which of the following is not a common post-streptococcal complication associated with Streptococcus pneumoniae infection?
Rheumatic fever
Learn about the laboratory diagnostic methods for streptococcal infections, including classification based on Lancefield antigenic classification, pattern of hemolysis, and physiological features.
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