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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The Digestive System is the name given to the sequential process that our bodies perform when ingesting food‚ and the breaking down of macromolecules into micromolecules so that the body can absorb it’s nutrients into the bloodstream and it’s cellular system to obtain energy for cellular respiration‚ and the excretion all indigestible waste products. This happens within the digestive tract‚ which starts at the Mouth or Oral cavity and ends at the Anus. (Reference Appended image 1‚’ The Human digestive
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Water Pollution Water – The Elixir of Life Can you imagine life without water? Take a minute and think about it. We need water for all our daily essential activities – drinking‚ bathing‚ cleaning… In fact‚ every living thing on this planet needs water Water pollution And what do we do with this vital resource? We take its all important ability – we all know that water can dissolve many of the thing that we dump in it – to make it a giant rubbish bin. In fact‚ we even throw things
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nerve damage (tingling in legs and feet)‚ panic attacks‚ depression‚ infertility‚ and stunt growth in children. There are so many symptoms of the disease that mimic other disease such as irritable bowel syndrome‚ gastric ulcers‚ Crohn’s disease‚ and parasite infections‚ making celiac sprue extremely hard to diagnosis. Celiac
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fertilizer‚ are all contributors of pollution. Acid rain in which air pollutants become dissolved in water drops which in turn acidify the water‚ which is commonly known as “acid rain”. Both human and animal waste adds microbial pathogens‚ intestinal parasites and viruses into the water. However‚ in many cases communities and visitors exhibiting a disregard for one of our most precious resources are a large reason our beaches have become heavily polluted. Today it is quite common to hear on
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What is it?Lactobacillus is a type of bacteria. There are lots of different species of lactobacillus. These are "friendly" bacteria that normally live in our digestive‚ urinary‚ and genital systems without causing disease. Lactobacillus is also in some fermented foods like yogurt and in dietary supplements.Lactobacillus is used for treating and preventing diarrhea‚ including infectious types such as rotaviral diarrhea in children and traveler’s diarrhea. It is also used to prevent and treat diarrhea
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Evil in Nature and a Benevolent God The idea of the existence of evil in nature many times creates arguments between creationists and scientists concerning not only the design of nature by a creator God‚ but the actual benevolence of God. In Stephen Jay Gould’s essay "Nonmoral Nature" (1984)‚ he explores this highly controversial issue by posing the question: "If God is good and if creation reveals his goodness‚ why are we surrounded with pain‚ suffering‚ and apparently senseless cruelty in
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It is also used as a relief for asthma & pharyngitis‚ rheumatism‚ dyspepsia‚ boils‚ and diarrhea. 6. Niyog-niyogan (Quisqualis indica L.) - is a vine known as "Chinese honey suckle". This Philippine herbal medicine is used to eliminate intestinal parasites. 7. Sambong (Blumea balsamifera)- English name: "Ngai camphor or Blumea camphor" is a
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antibiotic. Genes can be... en.wikipedia.org/wiki/Antibiotic-resistant_bacteria Antibiotics were designed to kill bacterium that infect us. Unfortunately‚ they are indiscriminate and also kill the good bacterium that are mostly found in the large intestinal tract. This leaves a person open to reinfection‚ or other more prevalent infections‚ during and after use. he discovery of antibiotics has been one of the most important reasons of fall in mortality rates. It was the effect of antibiotics and
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Abstract Great demand on poultry meat and competition among poultry companies or farmers force broiler chicken raisers to develop or enhance feeding strategy for efficient production. Feed additives that contain antibiotics and arsenic to promote growth on broiler chicken pose problems on health and the environment. Thus‚ this study‚ Cocos nucifera (Coconut) Water as Natural Growth Enhancer for Gallus gallus domesticus (Broiler Chicken) was investigated. A total of 25 two-day old Gallus gallus domesticus
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