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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]
Hotels and dormitories were also considered appropriate because they can use negative pressure technology. [1] A pandemic (/ p æ n ˈ d ɛ m ɪ k / pan-DEM-ik) is an epidemic of an infectious disease that has a sudden increase in cases and spreads across a large region, for instance multiple continents or
A disease that is usually endemic can become epidemic or pandemic in the future. [5] For example, in some years, influenza becomes a pandemic, even though it is not usually a pandemic. During the course of the COVID-19 pandemic, it became apparent that the SARS-CoV-2 virus was unlikely to die out. [1]
In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold (which is also caused by other viruses, predominantly rhinoviruses ), [ 1 ] [ 2 ] while more lethal varieties can cause SARS , MERS and COVID-19 .
An epidemic's end can be considered a social phenomenon, not just a biological one. [13] Time reported in March 2024 that expert opinions differ on whether or not COVID-19 is currently considered endemic or pandemic, and that the WHO continued to call the disease a pandemic on its website. [11]
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He added, "Letting the virus circulate unchecked, therefore, means allowing unnecessary infections, suffering and death" and that "Never in the history of public health has herd immunity been used as a strategy for responding to an outbreak, let alone a pandemic".
A new analysis of genetic material gathered from a live-animal market in Wuhan in the early weeks of the COVID-19 pandemic strengthens the case that the outbreak originated there when the ...