MCEM Part A Study Guide/Microbiology/Specific Pathogen Groups/Streptococci and Staphylococci
Section 1: Streptococci and Staphylococci
[edit | edit source]Gram-positive cocci can be divided into two groups using the catalase test. Catalase catalyses the conversion of H2O2 to water and oxygen, causing bubbles. Staphylococci produce catalase and are therefore catalase-positive, whereas Streptococci are catalase-negative.
Streptococci
[edit | edit source]These are facultative anaerobes.
Streptococcus pneumoniae
[edit | edit source]
methods of spread of infection principal clinical features
Streptococcus pyogenes
[edit | edit source]methods of spread of infection principal clinical features
Staphylococci
[edit | edit source]Staphylococcus aureus
[edit | edit source]methods of spread of infection principal clinical features
Staphylococcus epidermidis
[edit | edit source]methods of spread of infection principal clinical features
Alpha-haemolytic streptococci
[edit | edit source]endocarditis procedural prophylaxis