staphylococcus

Pathogenesis of Toxic Shock Syndrome
Microbiology Pathology

Pathogenesis of Toxic Shock Syndrome (TSS)

Toxic shock syndrome (TSS) is a toxin mediated, rare, life threatening, systemic illness caused due to infection of Staphylococcus aureus (staphylococcal toxic shock) and Streptococcus pyogens (rarer called streptococcal toxic shock). While the syndrome often occurs in menstruating women, it can also affect men, children and postmenopausal women. Sources of infection: Vagina (superabsorbent tampon use) […]

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MBBS Exams Microbiology

Staphylococcus Aureus : Lab Diagnosis and Diseases

STAPHYLOCOCCUS: Classification: Family: Micrococcacea Genus: Micrococcus and Staphylococcus Species: S.aureus, S.epidermidis, S.saprophyticus, M.luteus, etc. Streptoccaceae and Micrococcacea both are family of gram positive cocci. 1. Streptococcacea : Catalase negative 2. Micrococcacea : Catalase positive Based on coagulase production, micrococcacea are: a. Coagulase positive: S.aureus b. Coagulase negative: S.epidermidis, S.saprophyticus Micrococcus is strictly anaerobic, form irregular […]

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