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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.
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 ...
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.
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 infected individual to a susceptible one.
- The Editors of Encyclopaedia Britannica
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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 ...
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.
