(CDC‚ 2011). Droplet are required with a patient is known or suspected of being infected with a pathogen which can be spread through droplet. The illnesses include; respiratory viruses like influenza‚ adenovirus‚ and human metapneumovirus‚ Bordetella pertussis‚ and during the first 24 hours: Neisseria meningitides and group A streptococcus (CDC‚ 2011). If these illnesses are suspected it is important personnel wears a face mask‚ googles‚ gowns and gloves (CDC‚ 2011). Lastly‚ airborne precautions
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Disease Etiology Transmission Landmark Signs/Symptoms Special Characteristics/Interesting Information Impetigo Staphlococcus aureusDirect Contact Itching; crusty‚ honey-colored‚ & flaky scabs typically around mouth Affects children 2-5 years Can heal with no treatment needed Scaled Skin Syndrome StaphlococcusSystemic Infection of normal microbiotaDesquamation (peeling of the skin) Treatment: Antibiotics Frequent in hospital nurseries Necrotizing fasciitis Streptococcus Pyogenes“Flesh eating”
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pyogenes colonies on blood agar * Streptococcus pyogenes large colonies * Streptococcus pyogenes Gram stain * Viridans streptococci on blood agarGRAM-NEGATIVE BACTERIA * Aeromonas hydrophila on CLED agar * Bacteroides fragilis Gram stain * Bordetella pertussis colonies on charcoal agar * Borrelia burgdorferi SEM * Campylobacter jejuni colonies and microscopy * Campylobacter jejuni SEM * Capnocytophaga sp. * Chryseobacterium indologenes on Mueller-Hinton * Chryseobacterium indologenes colonies
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Microbial Mechanisms of Pathogenicity Mechanisms of Pathogenicity • Pathogenicity: • Virulence: Mechanisms of Pathogenicity Figure 15.9 Portals of Entry • Mucous membranes • Skin • Parenteral route Numbers of Invading Microbes • ID50: Infectious dose for 50% of the test population (animals) • Dose of pathogen that will infect half of the test animals • LD50: Lethal dose (of a toxin) for 50% of the test population (animals) • Dose of toxin that will kill half of the test
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Characteristics Microorganism 1. What is the causative organism (genus and species) for the disease? Legionella pheumophilia Family Pseudomonacea: Pseudomona aeruginosa Family Pasteurellaceae Haemophilus influenza Bordetella pertussis 2. Is the causative organism a virus‚ bacterium‚ protest‚ mold or yeast? Bacteria Bacteria Bacteria Bacteria 3. General characteristics. Morphology: Bacilli pleomorphic-( cocci ->filaments) varies Motility: flagella Gram
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The Action of Naturally Occurring Toxins and Medicines It is important to classify toxins and medicines (drugs) in order to understanding the mechanism and function of each one of them. By doing so‚ it is also possible to increase their values by altering their mechanism (e.g. converting toxins to drugs) to cure diseases and improve human health. Therefore in this review‚ the mode of action of several toxins and drugs as well as their effects on human body will be discussed. 1. Cobratoxin Cobratoxin
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mutans No match No match ~50% E. coli Cocci Pairs Neg. ~75% Veilonella sp. Cocci Cubical packages of 4-8 cells Pos. ~45% Sarcina sp. Bacilli Curved rods with flagellum Neg. ~35% Vibrio Cholerae Oval Cocci/bacilli Oval irregular Neg ~67% Bordetella pertussis Answer the following questions: 1. Which of the species
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Chapter 21: Diseases of the Respiratory System Question Type: Multiple Choice 1) The upper respiratory tract consists of the: a) pharynx b) nasal cavity c) primary bronchi d) two of these choices Answer: d Difficulty: Easy Learning Objective 1: LO 21.1 Review the anatomy of the upper and lower respiratory tract as it pertains to microbial defenses. Section Reference 1: Section 21.1 Components of the Respiratory System 2) Middle ear infections are common in children because _____. a) they
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vaccinating. Immunizations have been around for at least a thousand years and as technology advances more‚ there are new vaccines being designed to help protect our children from contracting contagious and sometimes deadly diseases‚ such as Bordetella pertussis‚ polio‚ and even influenza. For decades‚ all 50 states have required that parents vaccinate their children against various diseases‚ including polio and measles‚ as a prerequisite to enrolling them in public schools (Ciolli‚ 2008). Enrollment
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outbreak occurs in the United States. “ at least 127 people in fifteen different states came down with measles.” [ source 2] other statistic show that “ every 20 children infected with diphtheria‚ one will die. One in 200 children will die from pertussis and one in 1‚000 will die from measles. As many as 30% of people infected with tetanus will die” [ source 3] Many parents do realizes what they are putting their child in when they choose not to vaccinate . Other parents do even know what contagious
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