when a living microorganism is consumed and the ingested microorganism produces toxin itself causes the illness. Some examples of bacteria that cause food are CLOSTRIDIUM BOTOLINUM and STAPHYLOCOCCUS AUREUS • An intoxication may also occur due to consumption of a toxic chemical such as cleaning chemicals. Foodborne Intoxication • Clostridium Botolinum Staphylococcus Aureus 3. Toxin Mediated Infection • Ingestion of a harmful microorganism in food that produces a toxin in the
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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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References: “Gas gangrene”‚ MedlinPlus Trusted Helth Information for you‚ < http://www.nlm.nih.gov/medlineplus/ency/article/000620.htm> “Oxidative stress response in Clostridium perfringens”‚ microbiology < http://mic.sgmjournals.org/content/150/6/1649.full>
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classified as Gram-positive bacilli: Bacillus cereus‚ Bacillus circulans‚ Bacillus coagulans‚ Bacillus megaterium‚ Bacillus subtilis‚ Bacillus thuringiensis‚ Brevibacillus brevis‚ Geobacillus stereothermophilus‚ Lysinibacillus sphaericus‚ Clostridium perfringens. Lastly‚ there were also 11 Gram-positive cocci microbes: Enterococcus faecalis (Streptococcus)‚ Streptococcus lactis (Lactococcus)‚ Streptococcus mutans‚ Streptococcus pneumoniae‚ Micrococcus (Kocuria) roseus‚ Sarcina lutea (Micrococcus luteus)
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El Camino College Compton Educational Center Summer 2010 General microbiology lecture part review questions for final exam Adapted by Dr. Eyob Wallano 1. Which is mismatched? A. parasitism – one organism benefits and the other receives no benefit B. competition – one organism gives off substances that inhibit or kill other organisms C. predator – seeks out and ingests live prey D. scavengers – feed on live to dead cells and wastes E. omnivores – feed on plants and flesh 2. The conversion of
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BACTERIA Identification (Classification I. Domain: Bacteria 1. Gram Negative Proteobacteria (Phylum XII) Non-Proteobacteria 2. Gram Positive LOW G+C (Phylum XIII) HIGH G+C (Phylum XIV) II. Domain: Archaea III. Domain: Eukarya (Gram Negative 1. Bordetella pertussis Pertussis/Whooping Cough 2. Eikenella corrodens Human Bite Injury
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group a streptococcal infection amputation may sometimes be needed. It was a flesh eating disease called Necrotizing fasciitis. 2.What features suggest that it is not Clostridium perfringens gangrene? Clostridium pefringens is a gram + rod and the bacteria they found in the patient was a gram + cocci which eliminates clostridium perfingens as a possibly even though some of the symptoms matched gangrene infections.
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Food poisoning is caused by eating organisms or toxins present in food or drinks. Staphylococcus or E. coli is one of the commonest bacteria which results in food poisoning. Due to improper handling‚ this kind of a contamination happens. Even though it is a very common condition it can get worse depending on the degree of contamination. Some common foods which can cause food poisoning if proper care is not taken are raw poultry‚ unpasteurized milk‚ red meat‚ poisonous mushrooms‚ pesticides on fruits
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Case Study Luke Tudor 09 Dec 2009 Microbiology‚ Vectors and Control DMS1515 Concerns have been raised about the safety of drinking water being provided for a large temporary community. The area is remote‚ rural‚ without proper sanitation and there are limited multipurpose water resources How could you ascertain the safety of the water? Potable water is fit for consumption by humans and other animals. Water may be naturally potable‚ as is the case with pristine
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bacterial contaminant. The more virulent the bacterial contaminant‚ the greater the probability of infection. Coagulase-positive staphylococci require smaller inoculums than the coagulase-negative species. Uncommon but virulent strains of clostridium perfringens or group A streptococci require a small inoculums to cause
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