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This is a list of the largest known epidemics and pandemics caused by an infectious disease in humans. Widespread non-communicable diseases such as cardiovascular disease and cancer are not included. 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 ...
An 1802 cartoon of Edward Jenner 's cowpox-derived smallpox vaccine. Diseases and epidemics of the 19th century included long-standing epidemic threats such as smallpox, typhus, yellow fever, and scarlet fever. In addition, cholera emerged as an epidemic threat and spread worldwide in six pandemics in the nineteenth century.
It was the last great pandemic of the 19th century, and is among the deadliest pandemics in history. [2][3] The pandemic killed about 1 million people out of a world population of about 1.5 billion (0.067% of population). [4][5] The most reported effects of the pandemic took place from October 1889 to December 1890, with recurrences in March to ...
v. t. e. The history of coronaviruses is an account of the discovery of the diseases caused by coronaviruses and the diseases they cause. It starts with the first report of a new type of upper-respiratory tract disease among chickens in North Dakota, U.S., in 1931. The causative agent was identified as a virus in 1933.
A medical dictionary definition of pandemic is " an epidemic occurring on a scale that crosses international boundaries, usually affecting people on a worldwide scale ". [14] A disease or condition is not a pandemic merely because it is widespread or kills many people; it must also be infectious.
The default answer for most scientists has been that the virus, SARS-CoV-2, probably made the jump to humans from bats, if it was a direct spillover — or, more likely, through one or more intermediate mammals. MCKEEVER A (6 April 2021). "We still don't know the origins of the coronavirus. Here are 4 scenarios".
The seventh cholera pandemic is officially a current pandemic and has been ongoing since 1961, according to a World Health Organization factsheet in March 2022. [1] Additionally, there have been many documented major local cholera outbreaks, such as a 1991–1994 outbreak in South America and, more recently, the 2016–2021 Yemen cholera outbreak .
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 (COVID-19) and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]