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Coronavirus disease 2019 is a contagious disease caused by the coronavirus SARS-CoV-2.The first known case was identified in Wuhan, China, in December 2019.Most scientists believe the SARS-CoV-2 virus entered into human populations through natural zoonosis, similar to the SARS-CoV-1 and MERS-CoV outbreaks, and consistent with other pandemics in human history.
Portals complement main topics in Wikipedia, and expand upon topics by introducing the reader to key articles, images, and categories that further describe the subject and its related topics.
The United States of America is a federal republic of 50 states, a federal district and 14 territories.It is located mostly in central North America.The U.S. has three land borders, two with Canada and one with Mexico, and has sea borders with Cuba, the Bahamas, the Dominican Republic, Bermuda and Russia, and is otherwise bounded by the Pacific Ocean, the Bering Sea, the Arctic Ocean and the ...
Medical education must adapt to take the e-patient into account, and to prepare students for medical practice that includes the e-patient. A 2011 study of European e-patients found that they tended to be "inquisitive and autonomous" and that they noted that the number of e-patients in Europe appeared to be rising.
Time portals are doorways in time, employed in various fiction genres, especially science fiction and fantasy, to transport characters to the past or future.. They differ from time machines in being a permanent or semi-permanent fixture linking specific points in time, and thus are an especially useful plot device when the plot involves characters moving many times back and forth.
China, officially the People's Republic of China (PRC), is a country in East Asia.With a population exceeding 1.4 billion, it is the world's second-most populous country after India, representing 17.4% of the world population.
Meghan Elizabeth Trainor (born December 22, 1993) is an American singer-songwriter and television personality. She rose to prominence after signing with Epic Records in 2014 and releasing her debut single "All About That Bass", which reached number one on the U.S. Billboard Hot 100 chart and sold 11 million copies worldwide.
The manipulations of the Rubik's Cube form the Rubik's Cube group. In mathematics, a group is a set with an operation that associates an element of the set to every pair of elements of the set (as does every binary operation) and satisfies the following constraints: the operation is associative, it has an identity element, and every element of the set has an inverse element.