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Ferdinand Magellan [a] ( c. 1480 – 27 April 1521) was a Portuguese [3] explorer best known for having planned and led the 1519–22 Spanish expedition to the East Indies, which achieved the first circumnavigation of Earth in history. During the expedition, he also discovered the Strait of Magellan, allowing his fleet to pass from the Atlantic ...
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.
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]
On 17 March 2020, Nature Medicine published a correspondence article titled "The proximal origin of SARS-CoV-2" that discussed the origin of the coronavirus that caused COVID-19 pandemic from genetic perspective. The article focused on analysing SARS-CoV-2's genome, and the sites that enable it to bind to human cells.
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.
The development of COVID-19 tests was a major public health priority during the early months of the COVID-19 pandemic. In January 2020, scientists from China published the first genetic sequences of SARS-CoV-2 via virological.org, [3] a "hub for prepublication data designed to assist with public health activities and research". [4]
Route taken by the expedition, with milestones marked. The Magellan expedition, sometimes termed the Magellan–Elcano expedition, was a 16th-century Spanish expedition planned and led by Portuguese explorer Ferdinand Magellan. One of the most important voyages in the Age of Discovery —and in the history of exploration —its purpose was to ...
The first scientist to publish a sequence of the COVID-19 virus in China staged a sit-in protest outside his lab after authorities locked him out of the facility — a sign of the Beijing's ...