(ALMOST) ALL THE BACTERIOLOGY YOU NEED TO KNOW
(ALMOST) ALL THE BACTERIOLOGY YOU NEED TO KNOW
(ALMOST) ALL THE BACTERIOLOGY YOU NEED TO KNOW
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ALPHA AND BETA HAEMOLYTICSTREP<strong>TO</strong>COCCISTREP<strong>TO</strong>COOCI INCUBATED ON BLOOD AGARAlpha haemolysis: greenishtinge around coloniesBeta haemolysis: clear zonearound coloniesBacterial growthOptochin disc to distinguishS.pneumoniae (optochin sensitive)from other α haemolytic streptococciBeta haemolytic streptococci are divided intoLancefield groups based on their surface antigens:Gp A; S.pyogenesGp B: S.agalactiaeAnd othersDr Paul Shears WUHT
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