Streptococcus

All catalase for streptococceae is negative

Gram stain morphology: Cocci in pairs and [blank_start]short and long chains[blank_end]

Colony Morphology of streptococcus: [blank_start]smooth[blank_end], domed, translucent, and sometimes [blank_start]dry[blank_end]

One of the MOST serious pathogens known

Strep throat is caused by S. pyogenes

Group A is also known as

Group B is also known as

Group C, F and G are also known as

Group D is also known as

[blank_start]Scarlet Fever[blank_end] usually appears within 1-2 days after pharyngitis appears. Occurs most often in children between 2 and 10 years of age. Characteristic rash- first appears on side of neck, spreads over chest and abdomen and finally covers extremities. Diffuse erythema with superimposed punctuate red spots. High fever.

[blank_start]Impetigo (pyoderma)[blank_end] begins with an outbreak of vesicular lesions on arms and legs, nose, mouth, throat, scalp. Lesions soon become pustular and in time are covered by a thick crust of a dark yellowish color. Patient may complain of itching.

[blank_start]Strep Toxic Shock[blank_end] causes necrotizing fascitis. progressive, rapidly spreading, inflammatory infection of deep tissue. Necrosis quickly spreads along deep fascial plane. High mortality rate

[blank_start]Rheumatic fever[blank_end] is a major problem in developing countries. Usually follows pharyngitis, can occur a few days to 5 weeks post strep infection. May lead to chronic, progressive damage to heart valves. Patient may need to be placed on antibiotics for life.

[blank_start]Acute Post-strep Glomerulonephritis[blank_end] is characterized by acute inflammation of renal glomerulus with edema, hypertension, hematuria, and proteinuria.

What disk can be used to encourage growth of nutrient deficient strep?

What is the most common cause of SBE (subacute bacterial endocarditis)?

What antibiotic would be the drug of choice for SBE?

Which group is penicillin resistant?

Common Infections associated with group B beta streptococcus. (Check all that apply)