Diphtheria (Corynebacterium diphtheriae) Corynebacteria are Gram-positive‚ aerobic‚ nonmotile‚ rod-shaped bacteria related to the Actinomycetes. They do not form spores or branch as do the actinomycetes‚ but they have the characteristic of forming irregular shaped‚ club-shaped or V-shaped arrangements in normal growth. They undergo snapping movements just after cell division which brings them into characteristic arrangements resembling Chinese letters. The genus Corynebacterium consists of a diverse
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Microbiology Iris Kapaj Diphtheria DIPTHERIA Name of Pathogen: Bacterium Corynebacterium diphtheria Body system affected: Respiratory tract‚ skin and lining tissues in the ear‚ eye‚ and the genital areas. If Bacterial: Morphology: Slender pleomorphic rods; often club-shaped If Bacterial Gram Stain: Gram positive Reservoir: Humans are thought to be a significant reservoir for Corynebacterium diphtheria. It is only found in the mouth‚ throat‚ nose‚ skin‚ bodily secretions
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Corynebaterium diphtheria; this agent is classified as Actinobacteria. The bacteria’s scientific name is Corynebacterium diphtheriae‚ Corynebacterium is the genus and diphtheriae is the species. The minor bacteria are non-sporulated‚ gram-positive‚ bacillus “with enlarged extremities” (Cohen & Powderly‚ 2010). With a range 0.5 to 1 µm units in diameter‚ the single strain of cells vary in size. Corynebacterium diphtheriae has fimbriae; this allows the bacteria to cling on to the hos-cell receptors. The infection
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It causes inflammation of the mucous membranes. One of the visible factors is that is creates false membranes in the throat that delays breathing and swallowing and can result in fatal heart and nerve damage by a bacterial toxin in blood. • Corynebacterium diphtheriae is the pathogenic bacterium that causes diphtheria. It is also known as the Klebs-Loffler bacillus‚ because it was discovered in 1884 by German bacteriologists‚ Edwin Klebs (1834 – 1912) and Friedrich Loffler (1852-1915). • 206‚000
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Diphtheria CLSM 327-Clinical and Pathogenic Microbiology I February 19‚ 2012 Introduction Diphtheria has been register in history as early as the fifth century and was later isolated as a bacterium called Corynebacterium diphtheria (CDC Diphtheria‚ 2012). Diphtheria can manifest itself in the upper respiratory system and the skin. It can further affect the heart and peripheral nerves causing paralysis and death. The route of infection is close contact with the infected person or soil objects
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Head lice‚ spend their entire life on the human scalp‚ feeding on human blood. The hosts of the parasite are humans. They do not normally in breed‚ however it can happen. Head lice are more common in children however they can affect a person at age or gender whatsoever. The female louse lay 3-4 eggs per day‚ and the eggs attach to the base of the hair shaft. The eggs need to be kept warm so the female lays them close to the scalp in cool climates and in warm weather the eggs can be laid further away
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------------------------------------------------- Diphtheria Diphtheria (Greek διφθέρα (diphthera) "pair of leather scrolls") is an upper respiratory tract illness caused by Corynebacterium diphtheriae‚ a facultative anaerobic‚ Gram-positive bacterium. It is characterized by sore throat‚ low fever‚ and an adherent membrane (a pseudo membrane) on the tonsils‚ pharynx‚ and/or nasal cavity. A milder form of diphtheria can be restricted to the skin. Less common consequences include myocarditis (about
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Figure 1 The 3D image from Antera camera assessment showed the clinical improvement in the treatment of xerosis with MAI at a baseline (A)‚ day 14 (B) and day 28 (C) respectively. Biophysical skin parameters Tewameter: From the Tewameter measurement‚ there were a decline from 8.87 ± 10.11‚ 5.4 ± 3.18 and 4.83 ± 1.84 g/m2h at the baseline‚ d14 and d28 respectively‚ however the result was not statistically significant (D14 p=0.111‚ D28 p=0.056). (Figure 2) Corneometer: The corneometer measurement
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fluctuations in different points indicating radically heterogeneous conditions throughout the distribution system. The total count varied from 1.2x102 to 6.3x103 cfu/ml. Different bacterial genera including Alcaligenes spp.‚ Bacillus spp.‚ Corynebacterium spp.‚ Escherichia spp.‚ Micrococcus spp.‚ Pseudomonas spp.‚ Shigella spp.‚ Staphylococcus spp. and Streptococcus spp. were isolated from the collected samples. The bacterial community was found to be diversified where the concentration of tannery
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twelve to run various tests on. There are only two microorganisms‚ one is Gram positive and one is Gram negative‚ inside the test tube. The Gram positive possibilities are to be narrowed down from Bacillus cereus‚ Clostridium perfringens‚ Corynebacterium xerosis‚ Enterococcus faecalis‚ Streptococcus agalactaie‚ Staphylococcus aureus‚ and
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