in Egypt. A German physician and bacteriologist‚ Robert Koch traveled with a group of German colleagues from Berlin to Alexandria‚ Egypt in August‚ 1883. Following necropsies‚ they found a bacillus in the intestinal mucosa in persons who died of cholera‚ but not of other diseases. He reasoned that the bacillus was related to the cholera process‚ but was not sure if it was causal or consequential. He stipulated that the time sequence could only be resolved by isolating the organism‚ growing it in
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humans through bites (Forsyth). As people migrated it reached Haiti and then spread to America (Clark p. 65). The bubonic plague‚ too‚ was a spontaneous epidemic. The Black Death occurred because a bacillus was carried by fleas that fed off the blood of humans and transmitted the deadly bacillus in the process (Packer). It began in China and spread by migration throughout all of Europe and even America (Forsyth). Efforts to contain both diseases were entirely unsuccessful. AIDS is now an international
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FIRST FEW VACCINES Vaccination is a simple‚ safe and effective way of protecting babies and children against diseases. The risks from having these diseases are far greater than the risk of any minor side effects from vaccination. When your child is given a vaccine‚ their body responds by making antibodies‚ the same as if they had caught the disease but without getting sick. Then their body produces antibodies to destroy the vaccine and these stay in your child’s body and protect them against the
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Unknown #1 Vomit Serratia marcescens & Bacillus cereus Biol 251 Microbiology 5/14/2009 Introduction The purpose of this study is to differentiate and identify two unknown organisms provided by the instructor in a nutrient broth. It is only known that the two organisms are from vomit; one is gram-positive and the other is gram-negative. It is necessary to first separate the two organisms by inoculating a nutrient agar plate using the streak-plate method. The
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Biology101 McDowall 10/29/2012 Escherichia Coli “The Bacterial Beast” E.coli or binomial name Escherichia coli was discovered by a German pediatrician named Theodore Escherich in 1885. Dr. Escherich originally named the bacteria‚ bacillus communis coli. After the demise of Dr. Escherich the intestinal bacteria was then named Escherichia coli after the late doctor in 1919. The bacteria Escherichia coli are classified as follows. Domain- Bacteria Kingdom- Eubacteria Phylum- Proteobacteria
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closer to the objective lens‚ using the coarse- or fine- adjustment knobs. The two objects that were studied was the Paramecium caudatum which is a bacteria‚ and Amoeba proteus which is an protozoa. Our hypothesis are that we will discover an bacillus‚ coccus‚ or a spiral shaped bacteria. Paramecium caudatum/ Bacteria Species of Paramecium can be distinguished from other ciliates by their cigar or slipper shape and the undulating membrane within the peristome - a furrow that leads to the
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Tuberculosis 4/30/2013 Bilbo-Coleman‚ Stephanie C. (Student) Researcher: Stephanie Bilbo-Coleman Age: 18 Major: Art Career Goals: Professional Artist Reason For topic: I never knew anyone personally of this condition but always heard about it. It made me curious of what this condition was actually was and what it does. I am interested into finding out about more of this condition and its history. Table of Contents Definition and History of Tuberculosis…..pg. 3
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STAINING FOR BACTERIAL ISOLATION Submitted by: Cherry Luz L. Rezaga Submitted to: Dr. Tomas J. Fernandez Jr. CRITERIA OF REPORTING 1. Thorough research (20%) 1.1. Number of literature cited more than five (5) 1.2. Completeness of the topic (5) 1.3. Principle discussed (5) 1.4. Literature should be cited in the text (5) 2. Confidence (20%) 2.1. Eye to eye contact (5) 2.2. No reading (5) 2.3. Proper handling of visual aids (5) 2.4. Magnified voice (5) 3. Appropriateness of visual
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"Black Death" in Medieval times. This is because the dried blood under the skin turns black. What is/are the causative agent(s)? Bubonic plague is caused by the bacterium‚ Yersinia pestis. It is also known as Pasteurella pestis. Other Pasteurella bacillus cause diseases such as tuberculosis. How is the disease transmitted? Plague is caused by an infection with Yersian pestis‚ which is a bacterium carried by rodents and transmitted by fleas found in parts of Asia‚ Africa‚ and North and South America
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prions protein‚ no genetic material 2. Cell morphology: determine by gene and environment conditions ⁃ coccus spherical ⁃ diplococci two ⁃ streptococci chain ⁃ sarcina cuboidal ⁃ tetrad four ⁃ staphylococci grape clustered ⁃ bacillus rod-like ⁃ coccobacillus oval ⁃ diplobacilli two ⁃ streptobacilli chain ⁃ palisades ladder ⁃ spirillum spiral < 20 turns ⁃ spirochete spiral > 20 turns ⁃ pleomorphic variation in size and shape 3. Cell structure ⁃ appendages
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