Staphyloccocus and streptococcus

Tameyra Stefani Al-Suhairy · 44問 · 1年前

通報

問題一覧

Aureus Epidermidis Saprophyticus

Staphylococcus

Grape like clusters Catalase (+) Skin, mucosa, colonize anterior nasopharynx

Staphylococcus

Capsule Peptidoglycan Protein A Teichoic acid

Staphylococcus

Pyogenes Agalactiae Pneumoniae Enterococci Bovis

Streptococcus

important differentiating feature between staph and strep

Catalase

protects the bacteria from phagocytosis

Capsule

defense of bacteria against antibodies

Protein A

Allows bacteria to attach to human cell

Teichoic acid

Destroy RBC

Cytolysin

Destroy WBC

Leukocidins

sloughing deformation of skin

Exfoliatin

Red skin

Staphylococcus scalded skin syndrome

s. Aureus: enzymes Marker for virulence

Coagulase

s. Aureus: enzymes C.o.n.s

S-epidermidis, s. Saprophyticus

Dissolve fibrin clots

Staphylokinase

Differentiate staph from strep

Catalase

Control the clot Dissolves fibrin clot

Staphylokinase

Produces drug resistance

S-aureus

Oldest mechanism to produce drug resistance

Production of beta lactamase

allows the bacteria to attach to the surfaces and protects it from the effect of antibiotic

Biofilm

Biofilm - found in surfaces, devices which are contaminated by

Coagulase negative staph epidermidis

Staphy aureus spreading factor

Hyaluronidase

Bullous exfoliative dermatitis Ritters disease

Staphylococcal scalded skin syndrome

infected wounds, menstruating women with tampons

Toxic shock syndrome

intoxication- preformed toxin by enterotoxin

Food poisoning

bullous impetigo folliculitis furuncle carbuncle burns

Skin infection s. Aureus

Streptococcus

Used for beta hemolytic strep

Lancefield grouping

Streptococcus

Hemolysis pattern on blood agar

incomplete lysis of RBC → reduction of Hgb + green pigment formation

Alpha hemolysis

- Group A (S.pyogenes) - Group B (S. agalactiae) - Group C

Alpha hemolysis

Complete hemolysis of RBC clearing of blood around bacterial growth

Beta hemolysis

S. Pneumoniae viridance strep

Beta hemolysis

Viridans Enterococci s. bovis

Gamma hemolysis

Principal virulence factor s.pyogenes

M protein

Causes redness in infection

Erythrogenic toxin

antiphagocytic property and anti complement property of bacteria

M protein

cytolytic toxin, destroy tissues, pus formation, gangrene

Exotoxin A and B

Mutans Mitis Salivarius

Viridans strep

Most common group of organisms in oropharynx

Viridans strep

Dental caries Infective endocarditis Intra abdominal infection

viridans strip

caused by bacteria from the mouth going to the heart. It can be due to tooth extractio

Endocarditis

protects bacteria from macrophage, this bacteria colonizes anterior nasopharynx

Capsule

Most common cause of bacterial meningitis acute sinusitis

s. Pneumoniae

Puerperal or neonatal sepsis

s. agalactiae group b strep

s. Pneumoniae

Alpha hemolytic

Group b strep s.agalactiae

Beta hemolytic

Viridans strep

Alpha and gamma hemolytic

Sporeformers

Sporeformers

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CORONA

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PAPILLO

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ADENO

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POX

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PARVO

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HEPATOTROPHIC

HEPATOTROPHIC

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PICORNA

PICORNA

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RABIES

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PARAMYXO

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ORTHO

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TOGA

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Nematodes

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Trematodes

Trematodes

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Cestodes

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General Principles

General Principles

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INTRODUCTION

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RX WRITING

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QUIZ CC 1

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Quiz anesthesia

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Quiz CNS

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Quiz ANS

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Quiz General principles

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Quiz Rx writing and math calculations

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INTRO

INTRO

Quiz routes of administration

Quiz routes of administration

HEMODYNAMICS, COAGULATION CASCADES, THROMBOSIS SHOCK PATHOLOGY

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QUIZ CC 2

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Impression materials

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Quiz anesthesia LECTURE

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ANESTHESIA

ANESTHESIA

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Enamel PART 2

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Dentin

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QUIZ Dentin Pulp

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Pulp

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INTRO

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PERIODONTIUM

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WEEK 2 HEPA

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WEEK 3 HIV

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WEEK 4 TB

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infectious disease

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anti tb week 1

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Olfaction

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Biofilm

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