KVV E-Modules - Bacterial infections-1.Sreptococcus pyogenes

Quadrant -I (Video)

Bacterial infections-1.Streptococcus pyogenes

Quadrant - II (Study Material)

1. Bacterial infections1. Streptococcus pyogenes

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Quadrant - III (Assignments)

1. Bacterial infections1. Streptococcus pyogenes

Streptococcus pyogenes is a Gram-positive bacterium that appears as spherical cocci arranged in chains. It belongs to Group A Streptococcus and shows beta hemolysis on blood agar. It is commonly found in the throat and skin of humans and can be part of the normal flora in some individuals. This organism is an important human pathogen and causes diseases such as pharyngitis, tonsillitis, impetigo, and cellulitis. It can also lead to severe infections like necrotizing fasciitis and toxic shock-like syndrome. In addition, it is associated with non-suppurative complications such as rheumatic fever and glomerulonephritis due to immune reactions. The bacterium possesses important virulence factors like the M protein and a hyaluronic acid capsule, which help it evade the immune system. It is usually treated effectively with penicillin, and early treatment is important to prevent complications.

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Quadrant - IV (MCQs)

1.Streptococcus pyogenes is:

A: Gram-negative bacill B: Gram-positive cocci in chains C: Gram-positive bacilli D: Gram-negative cocci

2.Streptococcus pyogenes belongs to which Lancefield group?

A: Group B B: Group C C: Group A D: Group D

3.Type of hemolysis shown by Streptococcus pyogenes is:

A: A. Alpha hemolysis B: Beta hemolysis C: Gamma hemolysis D: No hemolysis

4.The most important virulence factor of Streptococcus pyogenes is:

A: Capsule B: T protein C: M protein D: R protein

5.The capsule of Streptococcus pyogenes is made of:

A: Peptidoglycan B: Hyaluronic acid C: Lipopolysaccharide D: Chitin

6.Streptococcus pyogenes commonly inhabits:

A: Intestine B: Skin and throat C: Blood D: Liver

7.Which disease is caused by Streptococcus pyogenes?

A: Tuberculosis . C. D. B: Typhoid C: Pharyngitis D: Malaria

8.Which of the following is a non-suppurative complication?

A: Abscess B: Otitis media C: Rheumatic fever D: Cellulitis

9. Acute glomerulonephritis affects:

A: Heart B: Liver C: Kidneys D: Lungs

10. Drug of choice for Streptococcus pyogenes infection is:

A: Tetracycline B: Penicillin C: Ciprofloxacin D: Vancomycin

Quadrant -I (Video)

Bacterial infections-1.Streptococcus pyogenes

Quadrant - II (Study Material)

1. Bacterial infections1. Streptococcus pyogenes

Quadrant - III (Assignments)

1. Bacterial infections1. Streptococcus pyogenes

Quadrant - IV (MCQs)

1.Streptococcus pyogenes is:

2.Streptococcus pyogenes belongs to which Lancefield group?

3.Type of hemolysis shown by Streptococcus pyogenes is:

4.The most important virulence factor of Streptococcus pyogenes is:

5.The capsule of Streptococcus pyogenes is made of:

6.Streptococcus pyogenes commonly inhabits:

7.Which disease is caused by Streptococcus pyogenes?

8.Which of the following is a non-suppurative complication?

9. Acute glomerulonephritis affects:

10. Drug of choice for Streptococcus pyogenes infection is:

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1. Bacterial infections1. Streptococcus pyogenes