such as cancerous cells________________ 2. Pathogens are classified according to their size and where they are located in the body. List the five types of pathogens from largest to smallest: • _____ Parasitic worms_____ • ________Fungi________________ • _____Protozoa_____________________ • ____Bacteria______________________ • ______Virsuses____________________ 3. Which type of pathogen is always intracellular? ______Viruses__________ Which type of pathogen is always extracellular? _______Parasitic
Premium Immune system
org/wgbh/pages/frontline/shows/meat/interviews/pollan.html>. Kluger‚ Jeffrey. "What ’s So Great About Organic Food?." Time 176.9 (2010): 30-40. Academic Search Complete. Web. 9 Mar. 2013. Kowalcyk‚ Barbara. "Kevin ’s Story." Kevin ’s Story. Center for Foodborne Lllness Research and Prevention‚ 2008. Web. 09 Mar. 2013. <http://www.foodborneillness.org/leadership/140- kevins-story.html>. "Organic Food What Does "Organic" Mean?" Organic Food | Whole Foods Market. Whole Foods Market‚ 2013. Web. 09
Premium Organic food
Should people get Influenza Virus Vaccine? Introduction In winter‚ many people get caught by a flu. To prevent this‚ there is a flu vaccine‚ which has to be inoculated every year. There are many different opinions about this topic and this investigation will amplify some positive as well as negative effects of flu vaccine. Biological Background A flu (or biological name: influenza virus) is caused by the Influenza virus. There are three different types of this virus: Influenza-A-Virus‚ Influenza-B-Virus
Premium Vaccination Vaccine Immune system
Vida Darley NRS 202 Ati skills module: infection control. Prevention and controlling infections are very important in so many areas of life. There are so many measures that are taken to control the spread of infections. As health care professionals we have to have the knowledge of nosocomial infection also known as hospital acquired infections so that we can have proper precaution equipment and ways of preventing them. Number one safest way to prevent infection is proper hand washing technique
Premium Health care Patient Hygiene
11/8/2013 Organization of Presentation Disease Stages‚ Transmission of Pathogens‚ and Epidemiology COS Headings: Microbial Growth and Microbes in the Environment Microbiology Demystified: chapter 13 • • • • • • • • • Disease terminology Types of Microbiota Disease classification Host involvement of diseases Stages of disease Modes of transmission and reservoirs of diseases Portals of entry and exit Nosocomial infections and emerging diseases Epidemiology Course Mentor: Kim Shahi‚ PhD Vocabulary
Premium Epidemiology Infectious disease Bacteria
TASK 1 The body ’s first line of defence against pathogens uses mostly physical and chemical barriers such as sweat‚ skin‚ tears‚ mucus‚ stomach acid‚ and so on. Our skin and other membranes which line the body passages are fairly effective in keeping most pathogens out of the body. Mucus can trap pathogens‚ which are then washed away or destroyed by chemicals. Tears‚ sweat‚ and saliva have certain chemicals which can kill different pathogens. Bacterial spores and fungi are naturally present
Premium Immune system HIV
cause perforations in the infected cells. When both of these mechanisms are through they will help destroy pathogens in the infected body. This diagram will help with the visualization of these mechanism and their processes. Killer T-cells combine with antigens on the surface of any invading cell and release a powerful group of chemicals called lymphokines. Some lymphokines kill the pathogens directly‚ others stimulate lymphocytes to become active and help increase the inflammation so that there are
Premium Immune system
Freezing preserves food for extended periods because it prevents the growth of microorganisms that cause both food spoilage and foodborne illness. Freezing to 0 °F or below inactivates any microbes -- bacteria‚ yeasts‚ and molds -- present in food. Once thawed‚ however‚ these microbes can again become active‚ multiplying under the right conditions to levels that can lead to foodborne illness. Since they will then grow at about the same rate as microorganisms on fresh food‚ you must handle thawed items as
Premium Food preservation Meat Food safety
surface via Class II MHC molecules * Helper T cells recognise antigens displayed in this way | The antigens‚ signal to other cells so they may either know what to look for or know to destroy the cells that these antigens are attached to. 2. Pathogens: AIDS/HIV Type | Caused by the Human Immunodeficiency Virus | Methods of control | Reverse transcriptase inhibitors: These drugs inhibit the ability of the virus to make copies of itselfProtease inhibitors (PIs): These medications interrupt
Premium Immune system Antibody
entry and dealing with the pathogens once they have breached the outer defences of the body. Once a pathogen is inside the body‚ the immune system must recognize the pathogen as foreign and dispose of it. The overall immune system is divided into two separate systems that do work together to protect the body. The Innate system‚ is the initial immune response from childhood which functions in the same way whether or not the individual has already encountered the same pathogen. Whereas‚ the Adaptive
Premium Immune system Bacteria Antibody