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A COVID-19 vaccine is intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 . Prior to the COVID-19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...
On 28 December 2019, Dr. Lili Ren, a virologist at the Peking Union Medical College in Beijing submitted a complete sequence of SARS-CoV-2 structure to GenBank. The sequence was never made public as it failed to include the annotations required for publication, and attempts by the NIH to contact Dr. Ren went unanswered.
The COVID-19 pandemic ranks as the deadliest disaster in the country's history. [43] It was the third-leading cause of death in the U.S. in 2020, behind heart disease and cancer. [44] From 2019 to 2020, U.S. life expectancy dropped by three years for Hispanic and Latino Americans, 2.9 years for African Americans, and 1.2 years for white ...
Dr. Tom Frieden: Covid-19 is still around, and so are these misconceptions. Opinion by Dr. Tom Frieden. ... In the three years from 2017 to 2019, there were about 8.5 million total deaths in the ...
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 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]
In December 2019, a pneumonia outbreak was reported in Wuhan, China. [119] On 31 December 2019, the outbreak was traced to a novel strain of coronavirus, [120] which was given the interim name 2019-nCoV by the World Health Organization, [121] [122] [123] later renamed SARS-CoV-2 by the International Committee on Taxonomy of Viruses.
SARS-CoV-2 is the seventh known coronavirus to infect people, after 229E, NL63, OC43, HKU1, MERS-CoV, and the original SARS-CoV. [105] Like the SARS-related coronavirus implicated in the 2003 SARS outbreak, SARS‑CoV‑2 is a member of the subgenus Sarbecovirus (beta-CoV lineage B). [106] [107] Coronaviruses undergo frequent recombination. [108]
The first cases of the COVID-19 pandemic of Coronavirus Disease 2019 in North America were reported in the United States on 23 January 2020. Cases were reported in all North American countries after Saint Kitts and Nevis confirmed a case on 25 March, and in all North American territories after Bonaire confirmed a case on 16 April. [2]