Lesson 1: Introduction to Epidemiology Section 10: Chain of Infection As described above‚ the traditional epidemiologic triad model holds that infectious diseases result from the interaction of agent‚ host‚ and environment. More specifically‚ transmission occurs when the agent leaves its reservoir or host through a portal of exit‚ is conveyed by some mode of transmission‚ and enters through an appropriate portal of entry to infect a susceptible host. This sequence is sometimes called the chain
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Course Title: Epidemiology Lecturer: Mrs. Marilyn Procope-Beckles Group Members: Khadisha Daniel Vernella Joefield Nathalie Mohammed Rania Gardiner Stacey John Denise Lashley-Agard Britney Dumas Natalia Roberts [pic] Table of Content Introduction……………………………………………………………………….Page 3 Signs and Symptoms……………………………………………………………...Page
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Chapter 1 1. The scientist usually considered the first to see microorganisms‚ which he called "animalcules"‚ was A) Redi B) van Leeuwenhoek C) Pasteur D) Tyndall 2. The idea of Spontaneous Generation postulated that A) organisms could evolve into the next generation of organisms B) organisms could spontaneously combust C) organisms could spontaneously arise from other living organisms D) living organisms could spontaneously arise from non-living material 3. The work of Tyndall
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Chapter 19: Diseases of the Skin and Eyes; Wounds and Bites Question Type: Multiple Choice 1) The majority of organisms normal to the skin are: a) Gram-negative b) Gram-positive c) fungi d) viruses Answer: b Difficulty: Easy Learning Objective 1: LO 19.1 Review the anatomy of the skin and mucus membranes with regards to microbial defenses. Section Reference 1: Section 19.1 The Skin‚ Mucus Membranes‚ and Eyes 2) Which of the following is not considered resident microflora of the skin?
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Environmental and Global Health EEEeeCommunity Health Nursing EE Community Health Nursing Environmental and Global Health-‐HAT Task #3 Lynn Senfelds Western Governor’s University Environmental and Global Health Task A-‐1 The Communicable Disease Outbreak of Avian Influenza 2 Communicable diseases
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Bacterial Diseases of Fish by Robert B. Moeller Jr.‚ DVM California Animal Health and Food Safety Laboratory System University of California Aeromonas hydrophila (Bacterial Hemorrhagic Septicemia) 1. Gram negative motile rods 2. Effects many freshwater species and usually is associated with stress and overcrowding. 3. The clinical signs and lesions are variable. The most common finding is hemorrhage in skin‚ fins‚ oral cavity and muscles with superficial ulceration of the
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Preventing Infection INFECTION The invasion or colonization of the body by pathogenic microorganisms The presence of a particular type of microorganism in a part of a body where it is not normally found and may lead to a disease Microorganism A small (micro) living plant or animal that cannot be seen without the aid of a microscope A microbe Contributions TYPES of Microorganism Bacteria Fungi Protozoa Algae Viruses Multicellular Animal Parasites BACTERIA Very small‚ simple‚ unicellular
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HOME REMEDIES FOR COUGH AND COLD My Remedy The common cold is the most common human disease globally affected both men and women. Not to mention that in the Philippines there were clinical studies and evidences that number of incidences was increasing not just in big cities but also in rural and far flung areas. In such‚ as student researcher I would like to personally identify my own basic home remedy just to alleviate crisis brought by this most common
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Helicobacter pylori: Epidemiology‚ Pathogenesis and Diagnosis "If these bacteria are truly associated with antral gastritis‚ as described by Warren‚ they may have a part to play in poorly understood‚ gastritis associated diseases (i.e. peptic ulcer and gastric cancer)." Barry Marshall‚ 19831 Introduction: Barry Marshall’s and J. Robin Warren’s (now "classic") letters to the Lancet in June 1983 suggesting that the‚ then unidentified‚ curved bacilli found in human gastric epithelia "may have a
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hostile conditions‚ is typically found in soil. B. cereus has been recognized as an agent of food poisoning since 1955. The natural environmental reservoir for B. cereus consists of decaying organic matter‚ fresh and marine waters‚ vegetables and fomites‚ and the intestinal tract of invertebrates‚ from which soil and food products may become contaminated‚ leading to the transient colonization of the human intestine. Illness associated with B. cereus can occur when heat-resistant B. cereus endospores
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