From the time of the Ancient Romans‚ through the Middle Ages‚ and until the late nineteenth century‚ it was generally accepted that life arose spontaneously from non-living matter. Such "spontaneous generation" appeared to occur primarily in decaying matter. For example‚ a seventeenth century idea for the spontaneous generation of mice required placing sweaty underwear and husks of wheat in an open-mouthed jar. Then‚ waiting for about 21 days‚ during which time it was said that the sweat from the
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INFECTION CONTROL Pathogen- Infectious agent Colonization- If microorganism is present or invades host‚ grows and/or multiplies but does not cause infection. Communicable disease- if infectious disease can be transmitted from one person to another. -Symptomatic-if pathogens multiply and cause clinical signs/symptoms. -Asymptomatic- if no s/s are present *CHAIN OF INFECTION: 1. An infectious agent or pathogen 2. A reservoir or source for pathogen growth 3. A portal of exit from the
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ICO2: Causes and spread of infection 1.1 Bactetria are: Bacteria are organisms made up of just one cell. They are capable of multiplying by themselves‚ as they have the power to divide into different shapes. Their shapes vary‚ and that’s how they are used to separate them into groups. Usually a few micrometres in length. Bacteria are present in most surroundings on the planet‚ growing in soil‚ acidic hot springs‚ radioactive waste‚ water‚ and deep in the Earth’s crust‚ as well as in organic
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discovery of fire which was used for cooking and heat came smoke. The coldness and dampness of shelters was the perfect place for mildew to grow. The first shelters also had dirt floors which allowed for diseases to be transmitted from pests‚ microorganisms‚ and pets. Since the times of dirt floors we have industrialized not only on a personal level with the construction of our homes‚ but also on a business level with the construction of our factories and office buildings. The increase in population
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immediate impacts of mist concentrates on approaching sun powered radiation were recreated utilizing existing modules to relate aerosol sizes and chemical composition to airborne optical properties. Direct impacts were reenacted by including a prognostic treatment of cloud bead number and including modules that stimulate the airborne particles to frame cloud beads‚ reenact fluid science and tie a two-minute treatment of cloud water (cloud water mass and cloud bead number) to precipitation and an existing
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UNIT 4222-265 Causes and Spread of infection (ICO2) 1) Infections are the result of the body’s inability to fight off microorganisms that can cause damage or disease if they are left untreated. They can be viral or bacterial in nature and might be caused by a fungus or parasite. There are many common types and there are some rare ones which all have varying causes and treatments. Common bacterial infections include strep throat‚ urinary tract infections and E. coli; the different types are caused
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Name UNIT 22 CAUSES AND SPREAD OF INFECTION 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites What is a Bacteria? A bacteria is a living things that are neither plants nor animals‚ but belong to a group all by themselves. They are very small--individually not more than one single cell--however there are normally millions of them together‚ for they can multiply really fast. Bacteria are prokaryotes (single cells that do not
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tract (if normal flora in one area moves to another area; or eliminations); reproductive tract (semen or vaginal secretions); blood d. Mode of transmission- table 34 – 2‚ page 645 iii. Contact-direct‚ indirect‚ droplets iv. Airborne- small droplets suspended in air v. Vehicles- contaminated items‚ water‚ drugs‚ blood‚ who did vi. Vector- external and internal mechanical transfers (i.e. flies‚ mosquitoes‚ fleas‚ ticks‚ parasites) e. portal of entry-organisms
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Unit 20 – Causes and Spread of Infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites. Bacteria‚ fungi and parasites are all considered as ‘living’ things‚. Bacteria are single celled microorganisms that can only been seen through a microscope‚ they collect their nutrition from their surrounding and unlike viruses‚ they do not need a living host to reproduce. Viruses are difficult to destroy because they are enclosed in a protein coating. Viruses are disease-producing
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Test 2 Topic IV: Infection/Wound Table 31-2 Nosocomial Infections Site Most common Microorganisms Causes Urinary Tract Escherichia coli‚ Enterococcus species. Pseudomonas aeruginosa Improper catheterization technique‚ contamination of closed drainage system‚ inadequate hand cleansing Surgical sites Staphylococcus aureus (including MRSA). Enterococcus species (including VRE). Pseudomonas aeruginosa Inadequate hand cleansing‚ improper dressing change technique Bloodstream Coagulase-negative
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