... were obtained from the posterior wall of the pharynx with a wooden swab while the tongue was depressed (1). Hemolysis was examined on the petri plates of blood agar, inoculated with the pharyngeal isolates, to help narrow the identification range of possible streptococcal species present. Alpha hemolysis is when some red blood cells occupy the hemolytic ... results are displayed in Table 1. Table 1. Results of various physiological tests performed on streptococcal isolates obtained from the posterior wall of the pharynx. Sample Blood-agar streak stab Salt tolerance Optochin Bile Esculin ...

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