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 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 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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Jody Kaur Pure Cultures Lab 1/31/13 Introduction : Pure cultures are made of only one type of organisms and can be used to study their properties. A method used to isolate pure cultures is making a steak-plate‚ which is a dilution process in which culture is spread over an agar plate in a certain manner. Using a loop rod‚ culture was taken from the tube and dragged across area 1 several time‚of the agar. The agar was then turned 90º‚ and the loop was flamed and cooled. Taking some culture
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In the late 1960’s‚ while taking night classes at the NIH‚ Howard Varmus would be captivated by the partnership that seemed to exist between viruses and cancer. His interests would be further spurred by the introduction of two opposing hypotheses‚ the provirus hypothesis and the virogene-oncogene hypothesis‚ both attempted to describe how RNA viruses interacted with chromosomes of infected cells‚ but had little sound data to back either up. With this information in hand‚ Varmus‚ in the summer of
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Unit 4222-265 Causes and spread of infection Outcome 1 1. identify the differences between bacteria‚ viruses‚ fungi and parasites Bacteria are single cell organisms‚ fungi are multi-cell organisms. Viruses are made up of proteins and nucleic acids‚ they aren’t living whereas the others are. Viruses invade cells. They do not breathe or feed. Parasites are animals or plants that live off other animals or plants. 2. identify common illnesses and infections caused by bacteria‚ viruses‚ fungi and
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Tuberculosis Tuberculosis‚ MTB‚ or TB (short for tubercle bacillus) is a common‚ and in many cases lethal‚ infectious disease caused by various strains of mycobacteria‚ usually Mycobacterium tuberculosis. Mycobacterium tuberculosis has been present in the human population for thousands of years; fragments of the spinal column from Egyptian mummies from 2400 BCE show definite pathological signs of tubercular decay. Called "consumption‚" tuberculosis was recognized as the leading cause of mortality
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I would like to say something about ebola disease before tell what ebola victims‚ their families‚ and neighbors feel or think about ebola crisis. Ebola disease is caused by ebola virus. This deadly virus is very potent‚ and it attacks human’s immune system offensively . It soon spreads all body organ within a day or two days. Then the ebola patients either die within days or live if they are cured. Many people who were contaminated ebola virus died. For example‚ Thomas Eric Duncan who was a Liberian
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To fully understand this lab we first need to know what gram-negative and gram-positive bacteria are and what it’s composed of. Gram-positive bacteria take up the class of bacteria that stain crystal violet in the method of bacterial differentiation. Where gram-negative bacteria are a class of bacteria that does not retain crystal violet. Instead they are counter-stained pink by Safranin‚ and because of this‚ identifying positive is possible. One of the many differences between gram-negative and
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