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Epidemiologia

Epidemiology is the study and analysis of the distribution who, when, and wherepatterns and determinants of health and disease conditions in defined populations. It is a cornerstone of public healthand shapes policy decisions and evidence-based practice by identifying risk factors for disease and targets for preventive healthcare.

Epidemiologists help with study design, collection, and statistical analysis of data, amend interpretation and dissemination of results including peer review and occasional systematic review. Epidemiology has helped develop methodology used in clinical researchpublic health studies, and, to a lesser extent, basic research in the biological sciences. Major areas of epidemiological study include disease causation, transmissionoutbreak investigation, disease surveillanceenvironmental epidemiologyforensic epidemiologyoccupational epidemiologyscreeningbiomonitoringand comparisons of treatment effects such as in clinical trials.

Epidemiologists rely on other scientific disciplines like biology to better understand disease processes, statistics to make efficient use of the data and draw appropriate conclusions, social sciences to better understand proximate and distal causes, and engineering for exposure assessment.

However, the term is widely used in studies of zoological populations veterinary epidemiologyalthough the term " epizoology " is available, and it has also been applied to studies of plant populations botanical or plant disease epidemiology. The distinction between "epidemic" and "endemic" was first drawn by Hippocrates[3] to distinguish between diseases that are "visited upon" a population epidemic from those that "reside within" a population endemic.

The term epidemiology is now widely applied to cover the description and causation of not only epidemic disease, but of disease in general, and even many non-disease, health-related conditions, such as high blood pressure, depression and obesity. Therefore, this epidemiology is based upon how the pattern of the disease causes change in the function of human beings.

Significado de Epidemiología

The Greek physician Hippocratesknown as the father of medicine[5] [6] sought a logic to sickness; he is the first person known to have examined the relationships between the occurrence of disease and environmental influences. The cure to the sickness was to remove or add the humor in question to balance the body.

This belief led to the application of bloodletting and dieting in medicine. In the middle of the 16th century, a doctor from Verona named Girolamo Fracastoro was the first to propose a theory that these very small, unseeable, particles that cause disease were alive.

They were considered to be able to spread by air, multiply by themselves and to be destroyable by fire. In this way he refuted Galen 's miasma theory poison gas in sick people. In he wrote a book De contagione et contagiosis morbisin which he was the first to promote personal and environmental hygiene to prevent disease. The development of a sufficiently powerful microscope by Antonie van Leeuwenhoek in provided visual evidence of living particles consistent with a germ theory of disease.

Another pioneer, Thomas Sydenham —was the first to distinguish the fevers of Londoners in the later s. His theories on cures of fevers met with much resistance from traditional physicians at the time.

He was not able to find the initial cause of the smallpox fever he researched and treated. John Graunta haberdasher and amateur statistician, published Natural and Political Observations In it, he analysed the mortality rolls in London before the Great Plaguepresented one of the first life tablesand reported time trends for many diseases, new and old. He provided statistical evidence for many theories on disease, and also refuted some widespread ideas on them.

INTRODUCCION A LA EPIDEMIOLOGIA

John Snow is famous for his investigations into the causes of the 19th-century cholera epidemics, and is also known as the father of modern epidemiology.

His identification of the Broad Street pump as the cause of the Soho epidemic is considered the classic example of epidemiology. Snow used chlorine in an attempt to clean the water and removed the handle; this ended the outbreak.Respecto a la causalidadlos criterios tradicionalmente empleados son los formulados por Sir Austin Bradford Hill :. Un saludo. Por fa sera q alguien sabe sobre los paso q se realizan para el estudio de la epidemiologia, es q eh buscad nucho pero mmm.

Eso depende de los planes de estudio de cada universidad.

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Espero que esto conteste a tu pregunta. Un cordial saludo. Una vez terminado el ensayo se comparan los dos grupos para comprobar si el tratamiento estudiado tiene el efecto deseado, o no, sobre la enfermedad objeto de estudio.

Hola me gustaria saber mas sobre epidemiologia y saber cuales son sus causas y en si las enfermedades mas frecuentes te lo agradeceria bastante hasta pronto.

Hola soy estudiante de enfermeria y trabajo en el area de la salud me interesa todo sobre epidemiologia. Le agradeceria mucho si pudiera ayudarme. Saludo cordial…. Muchos saludos a usted, soy estudiante del cuarto semestre de enfermeria de la universidad de san carlos de guatemala solo queria saber la definicion de origen etimologico de la palabra epidemiologia, modelos de causalidad salud-enfermedad que se han usado en la epidemiologia: como surgieron, quienes fueron sus propulsores.

Quisiera conocer el concepto de factores de riesgo y todos los riesgo epidemiologicos, por ej. Hola…soy de REP. Me gustaria que me enviaran informacion abundante a mi correo de la materia… si es posible,es que las definiciones que bajo de la web no son muy convincentes que digamos. Ojala y puedan complacerme…Muchos exitos. Soii estudiante de la eskuela de enfermeria mochis. Soy estudiante de enfermeria y mi profesor me pidio que yo hga una exposicion sobre la epidemiologia en yucatan pero dsafortunadamente no encuentro nada sobre el tema mismo sera que me pueda recomendar alguna pagian web para buscar datos sobre lo mismo?

Hola, buenos dias, bueno pues el motivo de este correo es preguntarles que relacion existe entre la epidemiologia y la cronobiologia, espero me puedan ayudar. Hola soy estudiante de seguridad ocupacional en la guajira colombia, y quisiera saber cuales son las ramas de la epidemiologia ambiental; les agradeceria muchisimo sus ayudas Gracias.

Espero te sirva. Agradezco si me pueden colaborar en el tema… por que al momento solo encuentro epidemiologia. Hola: soy de venezuela y curso Diplomado en Salud Publica, y en verdad conseguir informacion sobre el tema es engorroso porque no dan definiciones exactas que nos ayuden a conceptualizar los diferentes temas de la epidemiologia en si.Epidemiology is the study of the emergence, distribution and control of disease, disability and death among groups of people.

The field of epidemiology combines the sciences of biology, clinical medicine, sociology, mathematics and ecology to understand patterns of health problems and improve human health across the globe. The word "epidemiology" is based on the Greek words "epi," which means "upon" or "befall," and "demos," which means "the people.

The ancient Greek physician Hippocrates is considered the father of epidemiology. Living between the fourth and fifth centuries B. He suggested treatments such as surgery, dietary modifications and herbal remedies. He also coined the terms "endemic" a disease specific to a certain area and "epidemic" a disease specific to a point in time — words epidemiologists those who study or practice epidemiology use to this day.

epidemiologia

Related: What is a pandemic? Epidemiologists can be thought of as doctors of the masses. A clinical physician is different from an epidemiologist because the physician focuses on the health and well-being of individual patients, and diagnoses and treats each patient based on clinical judgment, experience and scientific knowledge.

An epidemiologist, on the other hand, focuses on the collective health of communities and sometimes global populations of people. They try to understand the source of disease and other negative health effects, and estimate how many people are exposed and how the disease might spread through a population. Epidemiologists use statistics, mathematical and biological models and scientific knowledge to determine appropriate public health measures to control and prevent health problems.

Although generally associated with infectious diseases and outbreaks, such as the COVID pandemicepidemiologists can also study noninfectious health problems, such as the prevalence of lung cancer from smoking or a community's increase in homicide rates. Although the causes of these health problems may be different, many of the tools epidemiologists use to investigate these issues are the same. As a disease detective, every epidemiologist needs an extensive toolbox to find and investigate clues.

And at the center of every epidemiologist's toolbox is the so-called epidemiologic triangle. The triangle is a model for explaining the connection between the cause of a disease and the conditions that allow it to reproduce or spread. The triangle has three corners representing the "who, what and where" of any good question.

The "who" is the host, or the person who has the disease. The "what" is the agent, or the cause of the disease. And the "where" is the environment, or the external factors that allow and aid in the transmission of the disease. The goal of an epidemiologist is to uncover information that can help sever at least one link between the corners of the triangle, breaking the connection between the host, agent and environment, and stopping the disease in its tracks.

Through using advanced study design and analytic techniques, epidemiologists can use information both about the humans, or hosts, including genetic risk factors, and the organisms. In Marchduring the COVID pandemic, epidemiologist Neil Ferguson and fellow researchers at Imperial College London released a mathematical model detailing the potential impact of the disease if various prevention methods were implemented or not.

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The novel coronavirus, which started in Wuhan, China, quickly spread across the globe and overwhelmed hospital beds with patients suffering from acute respiratory problems and other complications. Ferguson and his team went on to recommend "more intensive and socially disruptive interventions," such as large-scale social distancing, to slow the transmission of the virus and prevent the deaths of millions.

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His team's recommendations became public policy in many countries in the hope of flattening the exponential growth of new cases. Live Science.Epidemiology is in large part a collection of methods for finding things out on the basis of scant evidence, and this by its nature is difficult. Alex Broadbent.

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Statistical models are sometimes misunderstood in epidemiology. Statistical models for data are never true. The question of whether a model is true is irrelevant.

epidemiologia

A more appropriate question is whether we obtain the correct scientific conclusion if we pretend that that process under study behaves according to a particular statistical model.

Scott L. ZegerAm J Epidemiol ; It is the methods that are important. The formulas will aid in sloving many problems, but they are useless in many others, and one must then fall back on the elementary priciples. Introduction to the Theory of Statistics.

McGraw-Hill, I am not the only one to believe that one of the main recent changes in our field is a formal methodological approach to causal inference. Lorenzo RichiardiInt. Rothman K. Modern Epidemiology, 3rd ed. Alex Broadbent Statistical models are sometimes misunderstood in epidemiology.

McGraw-Hill, I am not the only one to believe that one of the main recent changes in our field is a formal methodological approach to causal inference.Epidemiology is the method used to find the causes of health outcomes and diseases in populations.

In epidemiology, the patient is the community and individuals are viewed collectively. By definition, epidemiology is the study scientific, systematic, and data-driven of the distribution frequency, pattern and determinants causes, risk factors of health-related states and events not just diseases in specified populations neighborhood, school, city, state, country, global.

It is also the application of this study to the control of health problems Source: Principles of Epidemiology, 3rd Edition. Skip directly to site content Skip directly to page options Skip directly to A-Z link. Teacher Roadmap. Section Navigation.

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What is Epidemiology? Minus Related Pages. What public health problems or events are investigated? What public health problems or events are investigated Environmental exposures Lead and heavy metals Air pollutants and other asthma triggers Infectious diseases Foodborne illness Influenza and pneumonia Injuries Increased homicides in a community National surge in domestic violence Non-infectious diseases Localized or widespread rise in a particular type of cancer Increase in a major birth defect Natural disasters Hurricanes Katrina and Rita Haiti earthquake Terrorism World Trade Center Anthrax release Related Links.

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epidemiologia

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Advanced Search. Toggle navigation. Subscribe Register Login. November - Volume 30 - Supplement 2. Published November Other Supplements. View All. VOICES is a project of the journal to provide personal, historical, and scientific perspectives on the field of epidemiology, as seen through the eyes of the field's most senior and accomplished practitioners. Add Item s to:. An Existing Folder. A New Folder. The item s has been successfully added to " ". Thanks for registering! Be sure to verify your new user account in the next 24 hours, by checking your email and clicking the "verify" link.

This article has been saved into your User Account, in the Favorites area, under the new folder " ".Especially while you're adjusting your shopping habits, it's a great thing to have printed out and in your purse or wallet:As you find products that you can eat, write them down. That way, you'll save time at the grocery store instead of having to read the nutrition label every time.

I didn't have anything like this when I ended up having emergency surgery, and my poor husband had some frustrating experiences trying to find things for me.

Another issue you need to be aware of is cross-contamination. The simple act of putting a gluten-free bagel in your toaster can transfer small amounts of gluten to this previously safe food. If you live with people who don't share your diet, you really need to be careful. When it comes to cutting boards, avoiding wood is a good idea, since it's absorbent.

I use plastic, and I have one that's just for gluten-containing foods and one that's kept free of them. Same goes for your colander. To save on dishes, you can also prepare your food first and then re-use things for everyone else's. In my kitchen, you'll also find two butter dishes in use so I can keep mine from free from all those little glutinous crumbs that are transferred from the knife. My butter is kept on a higher shelf as well, so my kids don't accidentally grab it.

The toaster is an annoying one because it can be expensive.

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I considered two options: adding a second toaster to my kitchen, or buying a four-slice model with good separation between "their" side and mine. Because I don't have the space for two, I opted for a four-slice one.

I get the two slots on the left, while everyone else uses the right. Because gluten is responsible for the textures we're used to in baked goods, you may find that the things you bake with gluten-free flours just don't measure up. I've even found mixes that end up dry and crumbly. Something that really helps is using xanthan gum or guar gum. They help bind the food together and have a better texture.