Question

Complete this concept map to examine various aspects of Streptococcus pyogenes infection. Use the pop-up hints to help you place the terms correctly.

Answer 1

The streptococcus pyogenes infections are mainly.

1.Suppurative infections - The primary site involved is Throat.

A. Respiratory infections . These includes a. Pharyngitis ( sore throat)

b. Pneumonia.

c. Empyema.

B. Scarlet fever - This fever is due to streptococcal toxins spe A,B and C.

C. Necrotizing fasciitis - This is also called hemolytic streptococcal gangrene. ( flesh eaters syndrome).

Non - suppurative infections-

1. Acute Rheumatic fever - The streptococcal antibodies cross react with human tissue antigens.such as heart, brain.

Clinical manifestations - There are presence of bodies called Aschoff bodies.

Jones criteria for Rheumatic heart disease.

S - subcutaneous nodules.

P - pan carditis - inflammation of three layers of heat.

A - Arthritis - inflammation of joint.

C - chorea.

E - erythema marginatum.

2. Post streptococcal glomerulonephritis. It is followed by pharyngitis or sore throat.