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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 4, 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 ...
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.
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- WHO Results Report 2020-2021
- 2021
During the biennium 2020-2021, countries put up enormous efforts to address the unrelenting COVID-19 pandemic, with the world’s largest and fastest vaccination drive ever to rollout new COVID-19 vaccines. Despite this, 3.5 million lives were lost to the disease and vaccine hoarding and nationalism led to stark inequities.
Jan 27, 2021 · EDITORIAL. 27 January 2021. How epidemiology has shaped the COVID pandemic. Nature ’s third progress report, coming at the end of the pandemic’s first year, highlights key findings from...
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- Diseases
Information on COVID-19, the infectious disease caused by the most recently discovered coronavirus.
Mar 9, 2020 · An epidemic is an outbreak over a larger geographic area. When people in places outside of Wuhan began testing positive for infection with SARS-CoV-2 (which causes the disease known as COVID-19),...