Causes and spread of infection. 1.1 Viruses are pieces of nucleic acid wrapped in a thin coat of protein that replicate only within cells of living host. Bacteria are one cell micro-organisms with simple cellular organizations whose nucleus lacks a membrane. Parasites may be protozoa‚ yeast or multi cellular organisms such as fungi or worms that live in or on a host to obtain nourishment without providing any benefit to the host. Fungi there are many different varieties of fungi‚ and we eat quite
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1 Define and explain asepsis‚ antisepsis and cross infection Asepsis- An environment that is free of harmful microorganisms. An aseptic technique ensures that only uncontaminated equipment and fluids come into contact with susceptible body sites. It should be used during any clinical procedure that bypasses the body’s natural defences. Using the principles of asepsis minimises the spread of organisms from one person to another. Aseptic techniques are used to reduce contamination from microorganisms
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Are viruses living or nonliving? Scientist all over are debating whether or not a virus is in fact a living organism. There are many different opinions about this touchy topic from many different scientists. My job was to read through all of these different opinions and decided which side I agreed with. Do I think that viruses are living or nonliving? The answer to that question is‚ I absolutely believe viruses are nonliving and ill tell you why. Just because a virus seems alive doesn’t mean
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Penicillin Changed the World Imagine life without antibiotics‚ people dying of a whooping cough‚ a minor wound or even a simple infection. Until the accidental discovery of penicillin by Alexander Flemming‚ life was like this. The positive effects for the discovery of penicillin were the many medical advancements made both therapeutically and medicinally. Economically‚ people were living longer lives and populations were growing more rapidly. Socially‚ people were able to interact without risking
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Protozoa? Protozoa are one of the three main classes of parasites that cause diseases in humans. They are single-celled organism‚ and can only be seen under a microscope. When they invade a human they are able to multiply easily‚ which causes them to be at a great advantage and puts humans at a disadvantage. This helps them survive in the human body and causes a serious infection even with the arrival of a single protozoon. Infections caused by protozoa are contagious. Those protozoa that have inhabited
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Introduction Although bacteria is microscopic in size‚ it is largely important in the healthcare field‚ environmental work‚ food preparation‚ as well as many other industries. In particular‚ it is essential that healthcare workers be able to identify the species of bacteria invading a human reservoir in order to prescribe the correct antibiotic that will kill that species. For the purpose of bacteria identification‚ numerous tests have been devised to find out the exact species in question. However
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occurrence of hospital acquired infection and monitor degree of success of these measures. INTRODUCTION The occurrence and undesirable complications from hospital acquired infections (HAIs) have been well recognized for the last several decades. The occurrence of HAIs continues to escalate at an alarming rate. HAIs originally referred to those infections associated with admission in an acute-care hospital (formerly called a nosocomial infection). These unanticipated infections develop during the course
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Most P. aeruginosa infections occur in hospitalized patients‚ particularly those who are immunocompromised. P. aeruginosa is a common cause of infections in ICUs. HIV-infected patients‚ particularly those in advanced stages‚ are at risk of community-acquired P. aeruginosa infections. P. aeruginosa infections can develop in many anatomic sites‚ including skin‚ subcutaneous tissue‚ bone‚ ears‚ eyes‚ urinary tract‚ and heart valves. The site varies with the portal of entry and the patient’s vulnerability
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Candidiasis Commonly known as the Yeast Infection Candidiasis is an infection caused by Candida fungi‚ especially Candida Albicans. These fungi are found almost everywhere in the environment. Some may live harmlessly along with the abundant "native" species of bacteria that normally grow the mouth‚ gastrointestinal tract and vagina. Usually‚ Candida is kept under control by the native bacteria and by the body’s immune defenses. If the native bacteria are decreased by antibiotics or if the person’s
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Unit ICO1 The principles of infection prevention and control Outcome 1 Understand roles and responsibilities in the prevention and control of infections 1.The main roles and responsibilities of the employee in relation to prevention and control of infection are as follows: To use protective clothing when needed to stop cross contamination. This includes gloves‚ aprons and masks. To wash hands regularly and effectively. This needs to be done after handling food‚ personal care‚ toileting etc
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