Additionally, Mariana’s faeces sample result were clear of any bacteria growth especially Salmonella and E.coli. Several species of microorganism such as…
There are many organisms in the world. In microbiology lab, I was given an unknown organism and I was told I must figure out what organism it truly is. I had the honor to conduct a few experiments to come to an conclusion on what the type and name of the organism was. Each member of my class was given a plate of agar and a random number that correspond to the plate of agar. I was given the number 191.…
All of the isolates shown in Table 1 were resistance to S. aureus and were considered antibiotic producers. However, only isolate 12 and 16 showed resistant to the unknown Gram-negative organism. All of the antibiotic producers were then tested against Enterococcus faecalis, Pseudomonas putida, Acinetobacter baylyi, Escherichia coli, and Enterobacter aerogenes by the streak-plate method, which can be seen in Table 2. As demonstrated in Table 2, none of the antibiotic producers were found to be resistant against Enterococcus faecalis or Pseudomonas putida. Table 2 also showed isolates 3 and 4 were resistant to Acinetobacter baylyi, isolate 12 was resistant to Escherichia coli, and isolates 12 and 16 were resistant to Enterobacter aerogenes.…
Objective I. To learn how to inoculate the nutrient broth properly in preventing contamination to the nutrient broth and the culture Escherichia Coli. This is done by sterilized the loop and sterilized the neck of the tub with heat from before use and before put the cape on. II. To learn how to do a simple streak of an E. coli culture on a nutrient agar plate with one stroke from start to end like a “Z”. III.…
Plasmids are extra chromosomal DNA within some bacteria that exist as circular structures. Although they are not essential for survival of the bacterium, they often do confer many environment advantages such as antibiotic resistance. One bacteria of interest is E. coli, a gram-negative organism that is part of normal human gut flora. Some strains of E. coli are pathologic to humans, however some strains are beneficial. For example, one strain produces vitamin K, an essential nutrient.…
In January 1993, the first major E. coli outbreak swept through the northwestern United States. This is not the first time that a person had been infected with E. coli, but it is the first time that an outbreak became widely known and as far spread. Jack in the Box fast food chain was accredited with the blame for this first big E. coli outbreak. Ever since this first large infection with Escherichia coli the world has been on edge, not wanting another major outbreak.…
) Discuss antibiotic resistant bacteria, cause and effect. Antibiotic resistant bacteria is a big concern now a day due to the use of excessive and improper use of antibiotics. It is very common for people to star taking an antibiotic and stop the regimen as soon as the symptoms are gone. With this practice, bacteria that were not killed by the antibiotic but were exposed, are capable of becoming immune to it.…
An incubation period is the period of time between the infection of an individual by a pathogen and the development of symptoms of the illness or disease. The incubation period for Vibrio Vulnificus can take anywhere from 1-7 days, but it would usually take between 12 and 72 hours. What is a duration period and what is it for Vibrio Vulnificus? The duration period is the period of time that the pathogen remains in the hosts’ system. The duration period for Vibrio Vulnificus is between 2 to 8 days.…
Escherichia Coli is Gram-negative rod; motile; with or without capsule; non-fastidious, facultative anaerobe; bile tolerant; capable of growth at 44°C. Normal habitat is gut of humans and animals; may colonize lower end of urethra and vagina [1]. Most strains of Escherichia coli are common microflora in the human and animal gut flora. However, a few strains are potential foodborne (and occasionally waterborne) pathogens and produce potent enterotoxins [1,2].…
On September 23, 2015, Mr. Smith of 117 Akins Drive, Devon and his two other guest, contracted a foodborne illness and 2913 Bistro. Their symptoms consisted of; intestinal cramps, diarrhea, nausea, and vomiting. Customers report experiencing these symptoms ten to twelve hours after consumption. Mr. Smith and his companions said that they had had the Hearty beef stew, Garden fresh salad with a citrus vinaigrette, and the Rustic multigrain bun with sweet butter. Since a doctor was not notified I has been assumed that with the symptoms reported the Mr. Smith and his two other guest had experienced Bacillus Cereus also known as food poisoning.…
Introduction: Microbiology is the study of all living microorganisms like bacteria, fungi, protozoans…etc, and non-living microorganisms like viruses, viroids and prions. The significance of identifying an unknown microorganism is first to understand what type of organism it is and what structures it has to help figure out their potential benefit, danger or even neutrality to humans. Physicians benefit from this by identifying what their patients are suffering from and how to treat them. Also to figure out if the patient have contracted a new disease causing microorganism, which then need to be studied to find a way to contain it and potentially find a treatment or cure for it before it spread to effecting other people and cause more damage to the population.…
Research Experience Metabolic Integration in Salmonella enterica: My first research experience began with a summer internship in the Bacteriology department at the University of Wisconsin, Madison, investigating the compensatory mechanisms involved in metabolic integration. The overarching goal was to identify the changes and alternative pathways required to sustain life in a Salmonella enterica strain whose thiamine (vitamin B1) biosynthetic gene, thiH, had been replaced by an equivalent non-homologous gene from Bacillus subtilis, thiO, which is more prevalent than thiH among bacteria. This strain grows normally in aerobic conditions with and without B1 supplementation.…
The Salmonella also starts producing irritating intestinal toxins. In a few cases, the Salmonella may enter the bloodstream and stay in tissues/organs away from the gut. Once someone has been infected with the Salmonella bacteria, it takes about 8 to 48 hours for symptoms to begin. Some Symptoms of Salmonella include: chills, muscle aches, fever, nausea, vomiting and abdominal pain. Young children will typically have a severe reaction to food contaminated with Salmonella.…
Signs and symptoms emerges two and seven days after a person obtains the infection.…
E.Coli (Escherichia Coli ) Brenda Arambula Health Science Technology 3/4/2016 INTRODUCTION Escherichia Coli most known as (E.Coli) is a bacteria that normally gets into your intestine of humans and sometimes even warm blooded animals .Some of the E.Coli are even capable of causing diseases with conditions that can harm your immune system . E. Coli can make everyone sick but it mostly affects young children and elderly people this people are mostly likely to…