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Cholera (/ˈkɒlərə/) is an infection of the small intestine by some strains of the bacterium Vibrio cholerae.[4][3] Symptoms may range from none, to mild, to severe.[3] The classic symptom is large amounts of watery diarrhea lasting a few days.[2] Vomiting and muscle cramps may also occur.[3] Diarrhea can be so severe that it leads within ...
- 28,800 (2015)
Wikipedia[note 3] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki-based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history.[3][4] It is consistently ranked as one of the ten most popular ...
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- Online encyclopedia
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The COVID-19 pandemic, also known as the coronavirus pandemic, is a global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in an outbreak in Wuhan, the capital of Hubei, China, in December 2019, before it spread to other areas of Asia, and then worldwide in early 2020.
Paul Richard Alexander (January 30, 1946 – March 11, 2024) was an American paralytic polio survivor, lawyer and writer. The last man to live in an iron lung, he contracted polio in 1952 at the age of six.Alexander earned a bachelor's degree and Juris Doctor at the University of Texas at Austin, and was admitted to the bar in 1986.
A representation of the 3D structure of the protein myoglobin showing turquoise α-helices. This protein was the first to have its structure solved by X-ray crystallography. Toward the right-center among the coils, a prosthetic group called a heme group (shown in gray) with a bound oxygen molecule (red). Proteins are large biomolecules and ...
Background Titanic on sea trials, 2 April 1912 At the time of her entry into service on 2 April 1912, the Titanic was the second of three Olympic-class ocean liners, and was the largest ship in the world.She and the earlier RMS Olympic were almost one and a half times the gross register tonnage of Cunard's RMS Lusitania and RMS Mauretania, the previous record holders, and were nearly 100 feet ...
13 Reasons Why is an American teen drama television series developed for Netflix by Brian Yorkey and based on the 2007 novel Thirteen Reasons Why by author Jay Asher. The series revolves around high school student Clay Jensen ( Dylan Minnette) and the aftermath of the suicide of fellow student Hannah Baker ( Katherine Langford ). [3] .
