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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 ...
The CDC publishes official numbers of COVID-19 cases in the United States. The CDC estimates that, between February 2020 and September 2021, only 1 in 1.3 COVID-19 deaths were attributed to COVID-19. [2] The true COVID-19 death toll in the United States would therefore be higher than official reports, as modeled by a paper published in The ...
For medical management of COVID-19, see Treatment and management of COVID-19. Goals of mitigation include delaying and reducing peak burden on healthcare (flattening the curve) and lessening overall cases and health impact. [ 1 ][ 2 ] Moreover, progressively greater increases in healthcare capacity (raising the line) such as by increasing bed ...
A COVID-19 vaccine is intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 . Prior to the COVID-19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...
Epidemic curve. An epidemic curve, also known as an epi curve or epidemiological curve, is a statistical chart used in epidemiology to visualise the onset of a disease outbreak. It can help with the identification of the mode of transmission of the disease. It can also show the disease's magnitude, whether cases are clustered or if there are ...
Research and case studies have shown that lockdowns were generally effective at reducing the spread of COVID-19, therefore flattening the curve. [ 5 ] [ 6 ] [ contradictory ] [ 7 ] The World Health Organization 's recommendation on lockdowns is that they should be very brief, short-term measures to reorganize, regroup, rebalance resources, and ...
Weekly confirmed COVID-19 deaths Map of cumulative COVID-19 death rates by U.S. state [8] On December 31, 2019, China announced the discovery of a cluster of pneumonia cases in Wuhan . The first American case was reported on January 20, [ 9 ] and Health and Human Services Secretary Alex Azar declared a public health emergency on January 31. [ 10 ]
v. t. e. The Delta variant (B.1.617.2) was [3][4] a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India on 5 October 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021. The World Health Organization (WHO) indicated in June 2021 that the Delta variant was ...