Ppt source of infection. 4 million people worldwide.
Ppt source of infection. Explore sources of infection from humans, animals, air, food, water, insects, and soil, and understand different modes of transmission. Secondary infections happen when immunity is lowered allowing a new pathogen to invade. Their solution should be the most acidic as they started off with just the acid being present in their cup. Treatment depends on the type of infection. 4 million people worldwide. It defines nosocomial infections as infections acquired during or after hospitalization. Key roles in This document defines and describes various aspects of infection and infectious diseases. It also summarizes common bacterial, viral, and fungal agents that cause nosocomial infections and Title: Chain of Infection 1 Chain of Infection Dr. Infections can be endogenous from normal flora or exogenous from external sources. Common ways to do this include proper hygiene Healthcare-associated infections (HAI) (previously called nosocomial infection) refers to infections associated with health care delivery in any setting (e. The document outlines the sources and routes of HAIs, the risk factors, prevention strategies, and infection control guidelines essential for healthcare professionals to minimize infection rates. Mohamed El Bashaar 2 Causative Agent Susceptible Host Reservoir Portal of Exit Portal of Entry Mode of Transmission 3 CAUSATIVE AGENTS A biologic agent/s capable of causing infectious diseases. An infection occurs through a chain of events - a pathogen must have a reservoir, exit the reservoir, be transmitted to a new host, enter through a portal, and find a susceptible host. The severity can range from mild to fatal. Healthcare workers can reduce the risk of healthcare-associated infections and protect themselves, patients and visitors by following CDC guidelines. This document defines various microbiology terms related to infection. *(silent time from the moment of exposure to an infectious agent u The document discusses various types of infections, their classification, and sources of infection in humans, including man, animals, insects, soil, water, and food. It explains different modes of transmission for pathogens such as direct contact, droplet transmission, and indirect transmission through vehicles like contaminated water or food. Explain how infections spread between humans. Colloquially, infections are usually considered to be caused by microscopic organisms like viruses, prions, bacteria, and viroids, though larger organisms like macro parasites and fungi can also infect. Types of Reservoirs- Human reservoir, Animal reservoir, and Reservoir in non-living things. Breaking any link in the chain can prevent transmission and infection. It describes the mechanisms of infection, which involve encounter, colonization, penetration, spread, and damage. For an infection to establish, the microorganism must survive local conditions Transmission of infectious agents within a healthcare setting requires three elements: a source of infectious agents, a susceptible host with a portal of entry receptive to the agent, and a mode of transmission for the agent. louisiana. Where do Nosocomial Infections come from ?. Modes of transmission are discussed including contact, inhalation, ingestion, and inoculation. Classification of infections Sources of infection in Man Methods of transmission of infection Factors predisposing to microbial pathogenicity Types of infectious diseases. Factors The document discusses hospital acquired infections, also known as nosocomial infections. <break><break>This medical PowerPoint presentation is about infection as an invasion and multiplication of microorganisms such as bacteria, viruses, fungi, and parasites in the body. Additionally, it highlights the concepts of endemic, epidemic, and pandemic diseases, alongside the . Infection. It discusses pathogens, opportunistic pathogens, parasites, commensals, and saprophytes. Sep 1, 2014 · INFECTION AND INFECTIOUS PROCESS. The document defines infection as the lodgement and multiplication of an infectious agent in the body. The other top killers are lower respiratory infections and diarrheal diseases, which are caused by a variety of agents. It is a fundamental part of epidemiology, which originally developed from the study of infectious disease epidemics. It outlines the steps of infection, including sources and modes of transmission, identifying human, animal, and environmental reservoirs as key sources, along with modes like contact and droplet transmission. It discusses topics like classification of infections, sources of infection in humans, methods of transmission, factors affecting pathogenicity, and types of infectious diseases. It discusses the epidemiological interaction between host factors, infectious agents, and the hospital environment. The top single agent killers are HIV/AIDS, malaria and tuberculosis. This document provides an overview of a presentation on infection and disease. What is infection? An infection is the invasion of the body’s tissues by microorganisms such as bacteria and viruses. It describes endogenous sources as those originating from within one's own body, like staphylococci and streptococci normally found on the skin. dhh. There are different levels of infection including colonization, subclinical infection, latent infection, and clinical infection. It outlines methods of transmission, types of infectious diseases, and the stages of infectious disease progression. A delay of at least 48 hours after the beginning of the care is needed to consider the infection as a health care-associated infection. Infecting Microbes seek to use the host's resources to reproduce, often resulting in disease. WHAT IS A HEALTH CARE ASSOCIATED INFECTION (HAI) ? ther incubating* at the beginning of the care. It covers primary infections caused by initial exposure to a pathogen. An infectious agent (organisms) A source (reservoir) A portal of exit A mode of transmission Human beings, animals, insects, soil, water and food can all act as sources or reservoirs of infection. Bacteria,Parasites, Fungi Viruses 4 Reservoir Place in which an infectious agent can survive but may or may not multiply Salmonella in milk survives The document discusses various types of infections including primary, secondary, latent and opportunistic infections. They include: This document discusses routes and sources of infection. Animals like bats, mice and livestock also act as Title: The Chain of Infection 1 The Chain of Infection How diseases spread 2 The Chain of Infection Source of Infection There needs to be someone or something carrying the bad microbes that cause the infection There are many sources of infection, these can include People already infected Pets Unclean surfaces (door handles, keyboards, toilets, etc) 3 The Chain of Infection Way out for microbes This document discusses types of infections and their classification. It then provides definitions for related terms like disease, pathogenicity, virulence, acute vs chronic infections, and more. Apr 4, 2019 · Sources of Healthcare Associated Infections. It also describes common causative agents of human Source and Reservoir: Source: Refers to a person, animal, or object from which the microorganism is transmitted to the host Reservoir: Natural habitat in which the organism lives and multiplies * Term source and reservoir may be the same for many organisms but are not always synonymous For example Infection Source Reservoir Tetanus Soil Soil Title: Lecture 17 Introduction to Infectious Diseases 1 Lecture 17Introduction to Infectious Diseases Lecture aims To understand some key terms in microbial pathogenesis (disease causing microbes) and the study of infections To understand the nature of the infectious process To understand how vaccination/immunity may influence the spread of infections References Black Chp 14p384-401, Chp15p402 The learner with the number recorded by the teacher should have the most intense red colour in their cup and can be identified as the source of the ‘infection’. This is dependent on your results and techniques. Patients can get them from routine care, surgery, as a complication from the use of medical devices, such as ventilators or catheters, or as Hospital-acquired infections (HAIs) are infections that patients acquire during hospital care and are a significant global health concern, affecting over 1. Exogenous sources come from outside the body, including other humans who are infected, asymptomatic carriers, or symptomless carriers. Sources of infection This document discusses the sources and transmission of infection. These microorganisms are capable of causing harm to the host by damaging the tissues and organs, producing toxins, and Sep 19, 2025 · Infection refers to an invasion of the body by harmful microorganisms or parasites. Animals, the environment, food, water, soil, air Microorganisms can cause disease when they enter the body and find a favorable environment. Colonization Food Jun 12, 2025 · Infection control prevents or stops the spread of infections in healthcare settings. The major routes of transmission are contact, inhalation, ingestion, inoculation, and congenital. A. It begins by classifying infections as acute, chronic, primary, secondary, etc. g. Of the top ten causes of death compiled by the World Health Organization, five are due to infectious diseases. Microcolonies. An infection that develops in the hospital or after treatment is a Hospital Acquired Infection (HAI). It begins by defining infection as the invasion of a host's tissues by disease-causing organisms and their multiplication. Infectious disease epidemiology studies the distribution and transmission of infectious diseases. Focal infections are localized, while nosocomial infections are acquired in hospitals. infectiousdisease. The chain of components has six sections. Reinfections occur when exposed to the same pathogen after recovery. Check out this medical PowerPoint presentation titled "INFECTION AND INFECTIOUS PROCESS”. Describe some methods of preventing and fighting infections. Various organisms that cause diseases are described based on their portal of entry and exit from • An infection is the colonization of a host by Microbial species. It also describes different types of infections like primary, secondary, focal, nosocomial, and iatrogenic infections. Specifically, humans themselves can act as reservoirs by harboring microbes internally and transmitting them to others directly or indirectly. Jan 9, 2025 · Learn about the various types of infections, including primary, secondary, cross infections, and more, as well as how infections spread in society. Infectious diseases are transmitted from a source or Aug 3, 2023 · Source and Reservoir of Infection. , hospitals, long-term care facilities, community/ambulatory settings, and home/community care). Pathogens can survive and multiply in these reservoirs, allowing transmission to new hosts. gov Your taxes at work. Infectious Disease Epidemiology Section Office of Public Health Louisiana Dept of Health & Hospitals 800-256-2748 www. qvfjds9nuf6khklgymyqtjyefpasvaeihjiftmnmjyqypsbz88k81fb