| Front | Identifying features of Streptococcus pyogenes? |
|---|---|
| Back | Characteristic: • beta haemolytic • lancefield group A • known as Group A Streptococci (GAS) • most important streptococcal pathogen In all Streptococci: • Gram-positive cocci in chains • Catalase negative • Clear-grey-white, glistening, smooth, round colonies • Fastidious media requirements • Ferments carbohydrate to produce acid (hence LAB) • Facultative anaerobes or capnophiles |
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