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Common source outbreak of Hepatitis A in Nov-Dec 1978. This epidemic curve shows a presumed first case, known as the index case on November 6, 1978. 4 days later, there was a steep increase in cases, followed by the curve tapering down to zero. Some cases were food handlers, and some secondary cases.
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Infobox for pandemics Template parameters [Edit template data] This template has custom formatting. Parameter Description Type Status Name name The name of the pandemic, appearing above the infobox in bold String suggested Image image An image related to the pandemic, appearing below the title but above any maps File optional Image size image_size The image width in pixels ("px" is ...
A navigational box that can be placed at the bottom of articles. Template parameters [Edit template data] Parameter Description Type Status State state The initial visibility of the navbox Suggested values collapsed expanded autocollapse String suggested Template transclusions Transclusion maintenance Check completeness of transclusions The above documentation is transcluded from Template ...
There are several outbreak patterns, which can be useful in identifying the transmission method or source, and predicting the future rate of infection. Each has a distinctive epidemic curve, or histogram of case infections and deaths. [6] Common source – All victims acquire the infection from the same source (e.g. a contaminated water supply ...
The Kermack–McKendrick epidemic model (1927) and the Reed–Frost epidemic model (1928) both describe the relationship between susceptible, infected and immune individuals in a population. The Kermack–McKendrick epidemic model was successful in predicting the behavior of outbreaks very similar to that observed in many recorded epidemics. [7]
The cases emanated from a major flu outbreak at the farm, which affected nearly 1.8 million chickens. The workers were in the process of destroying those chickens, a process known as culling.
Flattening the curve is a public health strategy to slow down the spread of an epidemic, used against the SARS-CoV-2 virus during the early stages of the COVID-19 pandemic. The curve being flattened is the epidemic curve, a visual representation of the number of infected people needing health care over time. During an epidemic, a health care ...