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Feb 19, 2021 · Learn the differences between epidemic, endemic, and pandemic, and how they relate to disease outbreaks and public health. Explore the causes, history, and prevention of past and current pandemics, such as COVID-19, influenza, and AIDS.
An epidemic (from Greek ἐπί epi "upon or above" and δῆμος demos "people") is the rapid spread of disease to a large number of hosts in a given population within a short period of time. For example, in meningococcal infections , an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic.
Sep 7, 2024 · epidemic, an occurrence of disease that is temporarily of high prevalence. An epidemic occurring over a wide geographical area (e.g., worldwide) is called a pandemic. The rise and decline in epidemic prevalence of an infectious disease is a probability phenomenon dependent upon transfer of an effective dose of the infectious agent from an ...
- The Editors of Encyclopaedia Britannica
In epidemiology, a pandemic is defined as "an epidemic occurring over a very wide area, crossing international boundaries, and usually affecting a large number of people". During the COVID-19 pandemic, as with other pandemics, the meaning of this term has been challenged.
Oct 19, 2023 · Learn what an epidemic is, how it differs from a pandemic, and how it spreads through common-source or propagated transmission. Explore the causes and consequences of some recent epidemics, such as Ebola, cholera, and Lyme disease.
Coronavirus Pandemic (COVID-19) Research and data: Edouard Mathieu, Hannah Ritchie, Lucas Rodés-Guirao, Cameron Appel, Daniel Gavrilov, Charlie Giattino, Joe Hasell, Bobbie Macdonald, Saloni Dattani, Diana Beltekian, Esteban Ortiz-Ospina, and Max Roser. The data on the coronavirus pandemic is updated daily.
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Jan 27, 2021 · This editorial reviews key findings from epidemiology that have informed policy decisions and public-health measures during the first year of the COVID-19 outbreak. It also explores how epidemiology is adapting to new challenges, such as emerging variants and vaccine effectiveness.
