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Mar 17, 2021 · By April 26, the coronavirus pandemic had killed more than 200,000 people and sickened more than 2.8 million worldwide, according to data collected by The New York Times. The actual toll is higher ...
Feb 19, 2021 · What is an Epidemic? The Centers for Disease Control and Prevention (CDC) describes an epidemic as an unexpected increase in the number of disease cases in a specific geographical area. Yellow fever, smallpox, measles, and polio are prime examples of epidemics. An epidemic disease doesn't necessarily have to be contagious.
Mar 10, 2022 · Epidemic. An increase — often sudden — in the number of cases of a disease above what is normally expected in that population in a specific area. Pandemic. An epidemic that has spread over several countries or continents and affects many people. Over the past two years, COVID-19 has been classified as a pandemic due to its widespread effects.
An epidemic's end can be considered a social phenomenon, not just a biological one. This means that it is possible for the pandemic to have ended according to one definition (e.g., according to a definition based on how people behave) and still be ongoing according to another definition (e.g., according to a definition based on the number of ...
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.
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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.
Apr 30, 2020 · The difference between an epidemic and a pandemic isn’t the severity of the disease, but the degree to which the disease has spread. When a disease exists all the time in a specific region or ...
