24 Questions
What is the treatment of choice for Streptococcus viridans infections?
Penicillin G with aminoglycosides
Which vaccine is conjugated to a protein for better antigen response in children?
7 valent polysaccharide vaccine
What characteristic differentiates Streptococcus viridans from Streptococcus pneumoniae?
Optochin resistance
What feature allows Streptococcus viridans to adhere to fibrin platelet aggregates in the heart?
Dextran synthesis from glucose
Which disease is most commonly associated with Streptococcus viridans colonization of damaged heart valves?
Subacute endocarditis
What is the recommended prevention strategy prior to dental work for individuals with damaged heart valves?
Prophylactic antibiotics
What is the major virulence factor of Streptococcus pneumoniae?
Polysaccharide capsule
Which of the following diseases is NOT primarily caused by Streptococcus pneumoniae?
Gastroenteritis
What is the significance of the 'double lance' feature in the analogy?
It represents the lancet-shaped diplococci of Streptococcus pneumoniae
What is the significance of the 'mud on horses legs' feature in the analogy?
It represents the bile solubility of Streptococcus pneumoniae
Which of the following is NOT a virulence factor of Streptococcus pneumoniae mentioned in the text?
Lipopolysaccharide (LPS)
What is the significance of the 'sickle' feature in the analogy?
It represents the increased susceptibility to Streptococcus pneumoniae infection in individuals with sickle cell anemia
Which antibiotic is recommended for the treatment of Streptococcus viridans infections along with aminoglycosides?
Penicillin G
What is the main feature that differentiates Streptococcus viridans from Streptococcus pneumoniae based on the given analogy?
Bile resistance
Which vaccine induces an IgM response in adults and an IgG response in children due to its conjugation to a protein?
7-valent conjugate vaccine
What is the characteristic disease associated with Streptococcus viridans colonization in damaged heart valves that commonly occurs in the mitral valve?
Subacute endocarditis
Which feature of Streptococcus viridans allows it to adhere to fibrin platelet aggregates in the heart?
Dextran synthesis
Which response mechanism results in IgM production that does not last long in adults but leads to IgG production in children for the pneumococcal vaccines mentioned?
T-Cell independent response
What does the 'purple background' represent in the analogy?
The catalase-negative characteristic of Streptococcus pneumoniae
What is the significance of the 'α knight tournament' in the analogy?
It represents the partial hemolysis pattern of Streptococcus viridans on blood agar
What does the 'rust colored single lobe on chest' represent in the analogy?
Both a and b
What does the 'cracked shield with the symbol of IgA dimer molecule' represent in the analogy?
The ability of Streptococcus pneumoniae to cleave IgA, reducing host defenses
What does the 'techoic acid' feature represent in the analogy?
The ability of Streptococcus pneumoniae to inhibit complement activation
What does the 'Number 1 sign' represent in the analogy?
Streptococcus pneumoniae is the leading cause of meningitis, otitis media, pneumonia, and sinusitis
Test your knowledge on the treatment of infections using antibiotics such as azithromycin, ceftriaxone, amoxicillin, erythromycin, and high-dose penicillin. Explore the diagnosis methods involving grain stain and Quellung reaction. Learn about different vaccines for adults and children, including pneumococcal vaccines.
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