Infectious agents can be transmitted to a susceptible human through several different modes of transmission. Ebola is caused by a virus and is spread through direct contact with infected bodily fluids‚ such as blood‚ vomit‚ and feces. Direct transmission‚ or person-to-person transmission‚ occurs when a susceptible person touches another’s infected bodily fluids and then touches their mouth‚ eyes‚ nose‚ or another portal of entry. The study conducted in Liberia examined the rate of Ebola virus transmission
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DIAGNOSIS OF FOOD ALLERGY: Food allergies should be diagnosed by medical professionals trained in allergic disease management‚ such as allergists. The diagnosis process typically begins with the provider obtaining a detailed symptom history followed by a physical examination and‚ if allergy is suspected‚ further testing. Proper diagnosis is important to avoid unnecessary dietary restrictions‚ which may lead to inadequate nutrient intakes and/or undue psychosocial stress. History: A thorough food
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Dobrinka Atanasova Anthrax Anthrax is acute infectious disease that affects humans and other mammals. The causative agent of Anthrax is Bacillus anthracis. Bacillus anthrasic is a rod-shaped bacterium that forms spores (3). As we know‚ spores can survive many‚ many years in harsh conditions. Furthermore‚ the bacterium is also Gram-positive‚ encapsulated and aerobic (2). Anthrax can enter and affect the body via the skin‚ the lungs or gastrointestinal tract. The first one‚ the skin‚ is the least
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DIFFERENT TYPES OF AGAR Mac Conkey‘s Agar plate MacConkey (also McConkey) agar is a culture medium designed to grow Gram-negative bacteria and stain them for lactose fermentation. It contains bile salts (to inhibit most Grampositive bacteria‚ except Enterococcus and some species of Staphylococcus)‚ crystal violet dye (which also inhibits certain Gram-positive bacteria)‚ neutral red dye (which stains microbes fermenting lactose)‚ lactose and peptone. QUALITY CONTROL Results after 24 hrs at
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Ebola Week 2 Assignment 1) Infectious Agent a) Describe the Ebola virus‚ including what type of virus it is (family‚ DNA or RNA‚ envelope or not) and how many genes it has. The Ebola virus is a highly infectious disease that has killed many worldwide. The virus is part of the Filoviridae family that is a highly infectious agent (Garcia et al.‚ 2012). The Flioviridae family of viruses causes symptoms such as: fever‚ bleeding‚ and hypotensive shock to the host in which it enters (Garcia et al.
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Foodborne Illness Short Answer Questions Salmonella 1) What is the infectious agent (Pathogen) that causes this infectious disease? The infectious agent (pathogen) that causes salmonella is called salmonella enteriditis. The bacteria is larger than a virus; but‚ is visible to the eye with the microscope. It is rod-shaped‚ gram negative‚ non-motile bacteria that does not form spores. It infects the cell‚ multiplies within it; then‚ bursts the cell. Special effector protein factors are required
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University of Phoenix Material Antimicrobial Assay Worksheet Review the image and refer to Ch. 26 of Brock Biology of Microorganisms to answer the following questions. [pic] Adapted from The National Oceanic and Atmospheric Administration‚ by Islands in the Sea‚ 2002. Answer the following in 100 to 200 words each: 1. What does this picture represent? To what is the area around the disks proportional? This picture represents an antimicrobial agent susceptibility assay
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Alexander Fleming Biography… Fleming was born on 6 August 1881 at Lochfield a farm near Darvel in East Ayrshire Scotland. After the war Fleming actively searched for anti-bacterial agents‚ having witnessed the death of many soldiers from septicemia resulting from infected wounds. Unfortunately antiseptics killed the patients’ immunological defences more effectively than they killed the invading bacteria. In an article he submitted for the medical journal The Lancet during World War I‚ Fleming described
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Introduction: Attention getter: The most deadly killers on this earth are too small to see with the naked eye. These microscopic predators are viruses. Some viruses have no cure or not even a simple treatment. The unfortunate ones lay on their deathbed‚ crying out for mercy or pray for a miracle to happen. Their bodies slowly deteriorate and eventually die. The Ebola Virus is held responsible for the lives of thousands of people. Audience motivation: The Ebola virus is the T-Rex of microbes. I
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LAB 5: Coliform bacteria in surface waters I. Introduction Many organisms‚ including humans‚ have symbiotic bacteria in their guts that aid digestion. Symbiosis is an intimate relationship between different organisms in which both the host organism‚ e.g. the human‚ and the symbiote‚ e.g. bacteria‚ benefit from each other. In this case‚ the bacterium gets a favorable environment and food source in the intestines of a human. In return‚ these bacteria improve the digestibility of food through
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