Gram Positive Cocci of Medical Importance
Gram positive cocci by arrangement, clusters, chains, pairs, and tetrads, covering Staphylococcus, Streptococcus, Enterococcus, and Micrococcus with key identification tests
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Gram-Positive Cocci
Staphylococcus, Streptococcus, Enterococcus, Micrococcus — organisms, diseases, and identification tests
Staphylococcus saprophyticus: Properties, Pathogenesis, and Lab Diagnosis
Staphylococcus saprophyticus morphology, urease and adhesin virulence factors, and the novobiocin test used to confirm this cause of UTI in young women
Viridans Streptococci: Pathogenesis and Lab Diagnosis
Viridans streptococci morphology, dental and endocarditis pathogenesis, and how optochin resistance and bile insolubility distinguish them from S. pneumoniae.
Enterococcus faecalis: Properties, Pathogenesis, Lab Diagnosis
Enterococcus faecalis virulence factors, intrinsic antibiotic resistance, and the salt tolerance, bile esculin, and PYR tests used for lab diagnosis.
Streptococcus agalactiae (GBS): Properties, Pathogenesis, Lab Diagnosis
Streptococcus agalactiae (Group B Strep) virulence factors, neonatal disease patterns, and the CAMP, bacitracin, and hippurate tests for lab diagnosis.
Staphylococcus vs. Micrococcus: Key Differences and Tests
How to tell Staphylococcus and Micrococcus apart: morphology, catalase, bacitracin, furazolidone, and microdase test results compared.
Streptococcus pyogenes (GAS): Properties, Pathogenesis, and Lab Diagnosis
Streptococcus pyogenes (Group A Strep) morphology, virulence factors like M protein and streptolysins, and bacitracin, PYR, and other tests for lab diagnosis.
Staphylococcus vs. Streptococcus: Differences and Comparison Table
Compare Staphylococcus and Streptococcus by morphology, catalase test, hemolysis pattern, and diseases caused, with a full comparison table.
Lancefield Classification of Streptococci
Lancefield grouping of beta-hemolytic streptococci by C-carbohydrate antigen, covering Groups A, B, C, D, and F with key lab tests.
Streptococcus pneumoniae: Properties, Pathogenesis, and Diagnosis
Streptococcus pneumoniae morphology, virulence factors like pneumolysin and capsule, and the optochin and bile solubility tests used for lab diagnosis.
Staphylococcus aureus: Properties, Pathogenesis & Lab Diagnosis
Staphylococcus aureus morphology, virulence factors and the diseases they cause, plus catalase, coagulase and other tests used for lab diagnosis.