"Microbiology" Essays and Research Papers

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    West nile virus

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    WNV IgM in serum remains detectable for at least 1 to 2 months after infection and sometimes longer therefore serum IgM results must be interpreted in reference to the patient’s clinical presentation and travel history‚ as well as regional WNV activity (Maldin B‚ et al. 2003) A negative IgM result on an acute-phase specimen strongly suggests absence of WNV infection. A positive IgM result on an acute-phase specimen‚ accompanied by clinical symptoms consistent with WNV infection‚ strongly suggests

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    Biosafety Level 2

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    1. The four levels of security in a virology research facility are: a. Biosafety level 1: Minimal biohazard. Study of low risk infectious agents: pneumococcus‚ salmonella. b. Biosafety level 2: Moderate biohazard. Infectious agents: Hepatitis‚ Lyme disease‚ influenza. c. Biosafety level 3: High biohazard. Multiple vaccinations required. Infectious agents: anthrax‚ typhus‚ H.I.V. d. Biosafety level 4: Extreme biohazard. Maximum security. Infectious agents: Ebola‚ Lassa‚ Hanta viruses. Highly

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    Bio Lab Report Title: Gram-Negative and Gram-Positive contamination in yogurt. Introduction: There is bacteria that is beneficial and harmful in the human. Yogurt was choosed to be the best example that contains this bacteria. What happens to be the difference between these two types of bacteria‚ and how are they harmful? The bacteria is considered “Gram-Negative‚” and the substance is considered contaminated when there is more negative bacteria than positive bacteria. This will prove or disapprove

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    Key words: Clostridium perfringens‚ diarrhea‚ dog‚ hemorrhagic gastroenteritis. Introduction Enteric clostridial infection in dogs are life-threatening condition usually caused by Clostridium perfringens and Clostridium difficile. The pathogenesis of enteric clostridial infection requires two factors; the presence of these microorganisms in the intestine and a change in the enteric microenvironment. C. perfringens is a Gram-positive‚ spore-forming‚ obligately anaerobic‚ non-motile bacillus and

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    Pseudomonas syringae Finding a bacterium that I felt even a shred of confidence to discuss in a paper was no easy task‚ but while doing research I discovered this (probably more well-known than I realize) bacteria that had some properties that were incredibly interesting to me. The basic properties of Pseudomonas syringae is that it ’s gram-negative‚ has a rod-shaped morphology‚ and is an aerobic respirator. It ’s categorized as gram-negative due to crystal violet being washed away‚ and stained

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    * Artavia Combs * * November 22‚ 2011 * * Jennifer Schmitz * * Salmonella * * * What is the infectious agent (pathogen) that causes this infectious disease? For example‚ the name of the bacteria‚ virus‚ or parasite. Samonella is a gram-negative‚ rod-shaped bacilli that can cause diarrheal illnesses in humans. The infectious agent that causes Salmonella is Salmonella Enterditis . Salmonella Enterditis is the infectious agent that breaks out to be salmonella

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    Salmonella Research Paper

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    Bacteria- Salmonella‚ Staphylococcus aureus‚ Clostridium perfringens. Salmonella causes food poisoning caused by infection with the salmonella bacterium. Staphylococcus aureus- causes skin infections such abscesses‚ respiratory infections such as sinusitis and food poisoning. Clostridium perfringens- causes food poisoning with symptoms of diarrhoea and abdominal cramps Viruses- Pandemic influenza‚ HIV‚ herpes simplex and hepatitis. Pandemic influenza is a virus which the human population has little

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    Mystery bacterium I would not say science is storybook fun‚ but who knew it become a mystery. Trying to find out what was in our number seven vial would become a battle we were willing to take on. As I began the test of deciding if our little bacteria friend was gram positive or negative‚ Jordan my science teammate‚ was putting together a smear plate. In as little as ten minutes we had discovered by the pink oval shapes we were observing‚ our microbe friend was a gram negative rod. We had narrowed

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    Ebola Research Paper

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    Ebola Hemorrhagic Fever (7th grade report) Ebola is a severe and often fatal disease in humans‚ and non-human primates‚ such as monkeys‚ gorillas‚ and chimpanzees. Scientists don’t know exactly where the virus was first originated. However they do believe that the virus is zoonotic‚ or animal born. They believe an animal host that is native to the African continent maintains it. A similar host would be monkeys associated with Ebola-Reston. Cases of Ebola Virus have been found in Congo

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    Botulism Research Paper

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    Botulism The topic I chose to talk about today is botulism. Botulism neurotoxin is one of the most lethal substances known to man. Not many people are aware of what it is and its negative side-effects. What is Botulism? 3) Botulism is a neurotoxin produced by Clostridium botulism. Botulism causes extreme and sometimes fatal food poisoning. Botulism was first identified in Germany in 1735. A person had eaten a German sausage and got food poisoning. This is how botulism got

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