'Toxin production' diaporamas de présentation

Chapter 10: Gram-Positive Rods

Chapter 10: Gram-Positive Rods. Corynebacterium (Coryneforms) Genus: Corynebacterium Species: Corynebacterium diphtheriae Corynebacterium xerosis Corynebacterium pseudodipheriticum

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TETANUS

TETANUS. By Chandana Krishna 4 th term B.M.C. TETANUS. Tetanus is a medical condition characterised by prolonged contraction of skeletal muscle fibres. Introduction.

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TOXIN TALK

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Gastroenteritis

Gastroenteritis. Inflammation of stomach or intestines Inhibits nutrient absorption and excessive H 2 O and electrolyte loss Bacterial Viral Parasites Poisoning by microbial toxins food borne intoxication. Signs and Symptoms :

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Lisa Drummond University of Edinburgh

Lisa Drummond University of Edinburgh. Antibiotics and Clostridium difficile. Introduction. Gram positive spore- former obligately anaerobic first described in asymptomatic neonates increased use of antibiotics led to an increase in C. difficile disease. Introduction cont.

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Cholera

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Viral Growth

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DIPHTHERIA

DIPHTHERIA. (BULL NECK). Diphtheria is an acute, toxin-mediated disease caused by Corynebacterium diphtheriae . The name of the disease is derived from the Greek diphthera , meaning leather hide.

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The Environmental Effects of Mycotoxins

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DOMAIN

DOMAIN. Bacteria. PHYLUM . Proteobacteria. CLASS. Gamma - Proteobacteria. ORDER. Vibrionales. FAMILY. Vibrionaceae. GENUS. Vibrio. SPECIES. Vibrio parahaemolyticus & Vibrio vulnificus. Vibrio parahaemolyticus. Halophilic Gram negative rod Facultative anaerobe

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Hemolytic anemia and Bacillus cereus septicemia in a patient with thalassemia intermedia

Hemolytic anemia and Bacillus cereus septicemia in a patient with thalassemia intermedia. Dr Grace Lam April 2010. 45/M Thalassemia intermedia Splenectomy as a child Refused iron chelation therapy Cord compression due to extramedullary hematopoiesis

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FOOD POISONING

FOOD POISONING. F ood poisoning is an acute gastro - enteritis caused by ingestion of food or drink contaminated with either living bacteria or their toxins or inorganic chemical substances and poisons derived from plants and animals. Clinical features: *Abdominal pain

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Toxin production: Endotoxin Exotoxin Toxines are strong immunogenes ? Ab production

Toxin production: Endotoxin Exotoxin Toxines are strong immunogenes ? Ab production Dosis letalis < Dosis immunosatoria minima ? Death or recovery without immunity Some toxines ? Superantigens. Receptor molecules. Pathogenes may attach to specific molecules on the cells

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Bacillus

Bacillus. Bacillus. Classification All are large Gram-positive bacilli Are aerobic Form endospores Most are found in dust and soil Bacillus anthracis is the major pathogen in the group Morphology and Cultural Characteristics ( Bacillus anthracis ). Bacillus anthracis.

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Case Study Pathogenic Bacteriology 2009

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Food poisoning Its is also known as food intoxication .

Food poisoning Its is also known as food intoxication . can be by chemical or poisonous plats and animals or by microorganism Chemical which can cause poisoning may enter food from pesticides, insecticides or utensils. The common chemicals are Antimony, Lead, Arsenic, Zinc

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BRAIN ABSCESS Symptoms: @ Progressive headache, Drowsiness @ Personality changes

BRAIN ABSCESS Symptoms: @ Progressive headache, Drowsiness @ Personality changes Lab. Investigations indicated: @ Lumbar puncture to exclude meningitis. @ Culture of pus collected from abscess. Aetiology of Brain Abscess. TETANUS Symptoms: @ Lockjaw, muscle weakness

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Gastro Intestinal Tract Infections

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