MCEM Part A Study Guide/Microbiology/Specific Pathogen Groups/Streptococci and Staphylococci

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Section 1: Streptococci and Staphylococci[edit]

Staphylococci and Streptococci are Gram positive cocci. Staphylococci are catalase-positive, while streptococci are catalase negative (catalase catalyses the conversion of hydrogen peroxide to water and oxygen - catalyse test - H2O2 bubbles).

Streptococci[edit]

Streptococcus pneumoniae[edit]

methods of spread of infection principal clinical features

Streptococcus pyogenes[edit]

methods of spread of infection principal clinical features

Staphylococci[edit]

Staphylococcus aureus[edit]

methods of spread of infection principal clinical features

Staphylococcus epidermidis[edit]

methods of spread of infection principal clinical features

Alpha-haemolytic streptococci[edit]

endocarditis procedural prophylaxis