four main groups. They are pathogenic‚ deficiency‚ hereditary‚ and physiological. In this presentation‚ we’ll be looking at certain diseases which are pathogenic. In this category‚ microscopic organisms called pathogens‚ which are viruses‚ bacteria‚ fungi‚ protozoa and worms‚ are the ones that cause the disease by living inside the host. Therefore‚ the relationship between the pathogen and the host is parasitism. Sexually Transmitted Diseases‚ or STD’s‚ are pathogenic‚ and are highly able to be transmitted
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Presently‚ the best method to prevent infection with avian influenza A viruses is to avoid the exposure sources as much as possible. Most of the human infections with avian influenza A viruses have occurred after prolonged or direct close contact with sick or dead infected birds. Infected poultry shed avian flu virus in their mucous‚ saliva and feces. Human infections with avian influenza viruses occur when enough virus is inhaled or gets into a person’s mouth‚ nose or eyes.It happens when the virus
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transmission and reservoirs of diseases Portals of entry and exit Nosocomial infections and emerging diseases Epidemiology Course Mentor: Kim Shahi‚ PhD Vocabulary • Pathology: Study of disease • Pathogenesis: Development of disease • Pathogen: Pathogenic agents have special properties that allow them to invade the human body or produce toxins. • Etiology: the study of the cause of a disease • Infection: invasion and growth of pathogens in the body • Disease: Abnormal state in which the body is
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Unit 22: ICO2 Causes and Spread of Infection Learning Outcomes Assessment Criteria Question it has been covered in: 1. Understand the cause of infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites Question 1 1.2 Identify common illnesses and infections caused by bacteria‚ viruses‚ fungi and parasites Question 1 1.3 Describe what is meant by infection and colonisation Question 2 1.4 Explain what is meant by ‘systemic infection’ and ‘ localised infection’ Question 2
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commercial products‚ and by enhancing human health; some microbes cause disease II. Members of the Microbial World A. Microbiology is the study of organisms too small to be clearly seen by the unaided eye (i.e.‚ microorganisms); these include viruses‚ bacteria‚ archaea‚ protozoa‚ algae‚ and fungi B. Some microbes (e.g.‚ algae and fungi) are large enough to be visible‚ but are still included in the field of microbiology; while
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represent the wastewater of community life. In composition wastewater includes dissolved and suspended organic solids‚ which are "putrescible" or biologically decomposable. Domestic wastewater also contains countless numbers of living organisms -- bacteria and other microorganisms whose life activities cause the process of decomposition. When decay proceeds under anaerobic conditions‚ that is‚ in the absence of dissolved oxygen in the wastewater‚ offensive conditions result and odors and unsightly
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MEDICAL IMMUNOLOGY & SEROLOGY Terence L. Eday‚ RMT‚ MT(ASCPi)‚ MPH College of Medical Technology / Medical Laboratory Science University of Perpetual Help System DALTA Historical Perspective • 1773‚ Voltaire reported on an ancient Chinese custom where dried and powdered small pox scabs were inhaled • 1798‚ Edward Anthony Jenner‚ Smallpox vaccination • 1862‚ Ernst Haekel‚ Recognition of phagocytosis • 1877‚ Paul Erlich‚ recognition of mast cells Historical Perspective • 1879‚
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MOLECULAR STRUCTURE OF DNA AND RNA •Adapted from Chapter 9 in Genetics: Analysis and Principles (Robert J. Brooker) Copyright ©The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display IDENTIFICATION OF DNA AS THE GENETIC MATERIAL • To fulfill its role‚ the genetic material must meet several criteria – 1. Information: It must contain the information necessary to make an entire organism – 2. Transmission: It must be passed from parent to offspring – 3. Replication:
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shells are made of & where they live. 10. Marine viruses can indeed be disease-inducing‚ but what two positive roles do marine viruses play? 11. What role do zooplankton play in marine food webs? 12. Define Holoplankton & meroplankton. 13. Why are do so many marine organisms have a planktonic larval stage (so are therefore meroplankton)? 14. List the two types of protozoan phytoplankton and two types of protozoan zooplankton. What are each of their shells made of?
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Clinical Decision Making A complete medical history was obtained from the patient. Following a discussion of her concerns‚ a physical exam‚ including a pelvic and bimanual exam was performed. Swabs of the vaginal area were collected and placed under the microscope. The results were concurrent with the suspected diagnosis of bacterial vaginosis. The physician explained the results of the swab samples and offered the patient different treatment options. Pathophysiology Bacterial Vaginosis (BV) is
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