Chain of Infection As described above‚ the traditional epidemiologic triad model holds that infectious diseases result from the interaction of agent‚ host‚ and environment. More specifically‚ transmission occurs when the agent leaves its reservoir or host through a portal of exit‚ is conveyed by some mode of transmission‚ and enters through an appropriate portal of entry to infect a susceptible host. This sequence is sometimes called the chain of infection. Figure 1.19 Chain of Infection Image
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UNIT 22 INFECTION CONTROL OUTCOME 1 UNDERSTAND THE CAUSES OF INFECTION 1.1 Bacteria are one celled micro-organisms that get their nutrients fro their environment to live eg: The human body. Bacteria causes infections and can reproduce either inside or outside the body. Viruses are pieces of nucleic acid (DNA or RNA) wrapped in a thin coat of protein. Viruses need to be inside living cells to grow and reproduce. They do not survive long unless they are inside a living thing eg: person
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Infection‚ as defined by Encyclopedia Britannica (2011)‚ is the invasion and multiplication of different pathogenic microorganisms in the body-such as fungi‚ bacteria and viruses- the body’s reaction to it and the defense mechanisms it activates to counter these pathogens or the toxins they produce. Infections can range from simple to complex ones that can be fatal or debilitating‚ but because of the continuous researches and studies to protect the human race‚ antibiotics were discovered. Antibiotics
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Causes and Spread of infection Q 1.1 - Identify the differences between: bacteria‚ viruses‚ fungi and parasites. * Bacteria are unicellular‚ prokaryotic microorganism found almost in all kinds of habits. Some bacteria are beneficial like those involved in nitrogen fixation and some pathogenic‚ which cause diseases. * Viruses are unicellular‚ tiny organisms which is mostly composed of DNA (DeoxyriboNucleic Acid) and protein. Its body
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Infection Control What causes people to get sick? How is disease spread from one person to another person? What can be done to stop the spread of infection and disease? As a health care worker‚ it is important to know the answers to these questions. When you understand what causes infection‚ you can learn how to prevent it. Infection control is a set of practices and procedures that will help to prevent the transmission of disease within a health care facility. Infectious and Communicable Diseases
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December 10‚ 2010 Microbiology Chain of Infection Link 1: The Organism (10 pts) Scientific name: Infectious mononucleosis Common name of disease: mono; also‚ the kissing disease Characteristics: [bacteria/virus/parasite‚ toxins‚ anaerobe/aerobe‚ etc] Mononucleosis is a lymphatic system disease‚ usually caused by the Epstein-Barr virus (EBV) (first cultured by Michael Epstein and Yvonne Barr). A similar condition is often caused by the
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List of skin conditions Acne A common inflammatory disorder of the sebaceous (oil secreting) glands of the skin causing inflamed red pimples on the face and neck. Most people affected by acne are aged between 12 and 25. However‚ men and women in their 30s and 40s can also suffer. There are many treatments available to help deal with the condition. Alopecia Alopecia means sudden hair loss. There are many different causes and patterns of hair loss. Any area can be involved including eyebrows and
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Infection Control Policy and Procedures Policy: Always wash your hands: * After using the toilet * After changing a diaper — wash the diaper-wearer’s hands‚ too * After touching animals or animal waste * Before and after preparing food‚ especially before and immediately after handling raw meat‚ poultry or fish * Before eating * After blowing your nose * After coughing or sneezing into your hands * Before and after treating wounds or cuts * Before
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developing a computer model of the spread of an infectious disease‚ the student develops an understanding of the role of the infection rate and the removal rate on the spread of the disease. The Threshold Theorem of Epidemiology claims that the extent of spread of an epidemic can be predicted if three values are known: initial number of susceptible people (S(0))‚ the infection rate (K)‚ and the removal rate (by quarantine or cure) (Q). The extent of the spread of the epidemic is indicated by the percentage
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What is skin grafting? Who can it help? How does it work? Be specific Describe both limitations and advancements Skin grafting is necessary when a patient is severely burned‚ which is considered to be a third degree burn. In a third degree burn the epidermis‚ dermis‚ and hypodermis are all affected from this this burn. Third degree burns are the most severe type of bun there is because the affect the epidermis‚ dermis‚ and the subcutaneous layer. After this type of burn the skin may appear charred
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