bacteria’s are harmless and beneficial to the human body but some can cause infectious diseases. A bacterium usually affects one part of the body and doesn’t spread across or through the body. Bacterial infections are normally treated with a cause of antibiotics Viruses are made up of genes and proteins that spread throughout the body by invading the body’s own cells so they can reproduce and multiply in the body. They use the body’s cells as a host because they are unable to multiply on their own. They
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Tuberculosis (TB) is a bacterial infection spread through inhaling tiny droplets from the coughs or sneezes of an infected person. It is a serious condition but can be cured with proper treatment. TB mainly affects the lungs. However‚ it can affect any part of the body‚ including the bones and nervous system. Typical symptoms of TB include: having a persistent cough for more than three weeks that brings up phlegm‚ which may be bloody weight loss night sweats high temperature (fever) tiredness
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The causes of infection. Diseases can be classified as genetic‚ metabolic‚ or infectious. Infectious diseases are caused by bacteria‚ viruses‚ fungi and parasites that use our body as a host for reproduction and cause illness. Bacteria‚ viruses‚ fungi and parasites. These are all microorganisms which cause infection‚ yet they are all different in structure‚ required environment and conditions needed to thrive and multiply. Bacteria is a single celled organism. It’s shape and size can vary
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Causes and spread of infection Identify the differences between bacteria‚ viruses‚ fungi‚ parasites? -Viruses aren’t living. They’re only made of complex proteins and nucleic acids. Bacteria‚ Fungi and Parasites are living organisms. - Bacteria are unicellular microorganisms. Fungi and Parasites are multicellular. - Fungi have cell walls made of chitin and they aren’t animals. Parasites and bacteria are animals. Bacteria come in 3 main shapes; spherical which are known as cocci‚ rod shaped
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BACTERIAL MENINGITIS BY JAY DOMANTAY JAY DOMANTAY ANATOMY 151 HERBERT MAY 11‚ 2009 BACTERIAL MENINGITIS A bacterial infection of blood poisoning in the meninges called bacterial meningitis affects toddlers‚ adolescents and young adults. The infection strikes nearly 3‚000 Americans each year‚ and 10 to 12% of those infected will die. Among those who survive‚ approximately 20 % live with permanent disabilities‚ such as brain damage‚ kidney disease‚ hearing loss or loss of limbs.(“Prevention
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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 contain a nucleus)
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INFECTION An infection is the colonization of a hostorganism by parasitespecies. Infecting parasites seek to use the host’s resources to reproduce‚ often resulting in disease. Colloquially‚ infections are usually considered to be caused by microscopic organisms or microparasites like viruses‚ prions‚ bacteria‚ and viroids‚ though larger organisms like macroparasites and fungi can also infect. Hosts normally fight infections themselves via their immune system. Mammalian hosts react to infections
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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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CU254 Aims Causes and Spread of Infection This unit is to enable the learner to understand the causes of infection and common illnesses that may result as a consequence. To understand the difference between both infection and colonisation and pathogenic and non pathogenic organisms‚ the areas of infection and the types caused by different organisms. In addition‚ the learner will understand the methods of transmission‚ the conditions needed for organisms to grow‚ the ways infection enter the body
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Causes and spread of infection. 1. Understand the causes of infection. 1.1 You need to understand the differences between bacteria‚ viruses‚ fungi and parasites; this also covers cell structure and growth pathogens. 1.2 Common illnesses and infections include bacteria for example tuberculosis‚ MRSA‚ tetanus‚ gangrene‚ Legionnaires ‘disease‚ salmonella and conjunctivitis. Viruses like winter vomiting disease‚ measles‚ mumps‚ chickenpox‚ HIV‚ Hepatitis B‚ warts and influenza. Fungal infections
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