Problem:
Question 1: What positive role might be played by the non-pathogenic streptococci normally found in between the teeth and gingival crevice?
Question 2: List the precautions that should be taken when obtaining a pharyngeal (throat) swab.
Question 3: When strep throat is suspected, the physician often will recommend that a pharyngeal (throat) swab be taken and cultivated on blood agar. Why?
Question 4: Explain how beta-hemolyis is distinguished from alpha-hemolyis.
Please provide description of your answers.