This test is used to distinguish Streptococcus pneumoniae (optochin sensitive (pictured on the right below)) from other a-hemolytic streptococci (optochin resistant (Streptococcus mitis is pictured on ...
Alpha hemolytic organisms (Streptococcus pneumoniae and Streptococcus mitis) are tested for their susceptibility to Taxos P (optochin). The beta hemolytic organisms (Streptococcus pyogenes and ...