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## Bacteriology | Pathogen | Distinct Characteristics | Infection | Distinct Signs and Symptoms | Mode of Transmission | Control, Prevention and Management | |---|---|---|---|---|---| | Staphylococcus aureus | G(+) Cocci in grape-like cluster N flora of the skin Catalase positive Produce yellow co...

## Bacteriology | Pathogen | Distinct Characteristics | Infection | Distinct Signs and Symptoms | Mode of Transmission | Control, Prevention and Management | |---|---|---|---|---|---| | Staphylococcus aureus | G(+) Cocci in grape-like cluster N flora of the skin Catalase positive Produce yellow coloniesMRSA, VRSA | Skin infections 1. Sty, Boils, furuncles, carbuncles. 2. Impetigo 3. Scalded skin syndrome | Abscess with pus | Usually not communicable | Hygiene, boost immune response | | Staphylococcus epidermidis | | Toxic shock syndrome | Fever, vomiting, diarrhea, hypotension, rash, multiple organ system involvement Nausea, vomiting, diarrhea, NO fever | Usually not communicable | Hygiene | | Staphylococcus saprophyticus | | Gastroenteritis | Strep throat Scarlet fever Can lead to rheumatic fever or glomerulonephritis | Ingestion Oral-fecal route Usually not communicable | Hygiene, sanitation | | Streptococcus pyogenes | G(+) cocci In chains N flora Encapsulated Classification: Hemolysis (α, β, γ) Lancefield/serological | Pharyngitis or pharyngotonsilitis | Vesicles, pustules | Usually not communicable | Hygiene, sanitation, boost immune response | | Streptococcus pneumoniae | G(+) cocci in pairs or short chains, lancet-shaped Encapsulated Alpha hemolytic | Puerperal sepsis Pneumonia | Lymphadenopathy Fiery red, advancing erythema on face and limbs Lymphoadenopathy and systemic infection Septicemia - during childbirth Fever, chills, sharp pleural pain, blood or rusty alveolar exudate | Usually not communicable Respiratory droplet, usually among immunocompromised hosts | Hygiene, sanitation, boost immune response Surgical asepsis PPE, isolation, boost immune response | | Bacillus anthracis | G(+) bacilli Sporefoming Aerobic Cut-glass appearance Central endospores | Inhalation anthrax Gastroenteritis anthrax Skin anthrax | Mediastinitis, sepsis, meningitis, hemorrhagic pulmonary edema, pneumonia Rapidly fatal Abdominal pain, vomiting, bloody diarrhea Necrotic ulcer which disseminates into blood stream | Inhalation of spores Ingestion of spores Entry of spores in open wound | Disposal of animal carcasses by burning or by deep burial Decontamination of animal products Protective clothing and gloves for handling infected materials |