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An epidemic is the rapid spread of disease to a large number of people in a given population within a short period of time; in meningococcal infections, an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic. [1]
An endemic disease always has a steady, predictable number of people getting sick, but that number can be high (hyperendemic) or low (hypoendemic), and the disease can be severe or mild. [3] [4] Also, a disease that is usually endemic can become epidemic. [3] For example, chickenpox is endemic in the United Kingdom, but malaria is not.
Epidemic typhus, also known as louse-borne typhus, is a form of typhus so named because the disease often causes epidemics following wars and natural disasters where civil life is disrupted. Epidemic typhus is spread to people through contact with infected body lice , in contrast to endemic typhus which is usually transmitted by fleas .
The World Health Organization declared the novel coronavirus disease a pandemic, with severe repercussions to human health and global economic activity. While WHO officials say the COVID-19 ...
COVID-19 will never go away, but the pandemic will be over when the disease becomes 'endemic.' Here's what that means.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 August 2024. Theoretical future stage of COVID-19 Part of a series on the COVID-19 pandemic Scientifically accurate atomic model of the external structure of SARS-CoV-2. Each "ball" is an atom. COVID-19 (disease) SARS-CoV-2 (virus) Cases Deaths Timeline 2019 2020 January responses February responses ...
For example, some areas may have a sudden spike in flu cases when the flu is prevalent. Epidemic and pandemic are just two of the words used frequently in news stories about the disease. "It boils ...
In October 1970, an Afghan family went on pilgrimage from Afghanistan, where smallpox was endemic, to Mashhad in Iran, triggering an epidemic of smallpox in Iran that would last until September 1972. By late 1971, smallpox-infected pilgrims had carried smallpox from Iran into Syria and Iraq .