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  2. Variants of SARS-CoV-2 - Wikipedia

    en.wikipedia.org/wiki/Variants_of_SARS-CoV-2

    The term variant of concern (VOC) for SARS-CoV-2, which causes COVID-19, is a category used for variants of the virus where mutations in their spike protein receptor binding domain (RBD) substantially increase binding affinity (e.g., N501Y) in RBD-hACE2 complex (genetic data), while also being linked to rapid spread in human populations ...

  3. The major COVID variants we've seen so far and which one to ...

    www.aol.com/news/major-covid-variants-weve-seen...

    The CDC reported that 66% of COVID-19 cases between April 11 and 24, 2021, were caused by the alpha variant. Pfizer-BioNTech, Johnson and Johnson, and Moderna said their vaccines prevented severe ...

  4. Timeline of the COVID-19 pandemic - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_COVID-19...

    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] The first ...

  5. COVID-19 - Wikipedia

    en.wikipedia.org/wiki/COVID-19

    The COVID‑19 vaccines are widely credited for their role in reducing the spread of COVID‑19 and reducing the severity and death caused by COVID‑19. [ 210 ] [ 213 ] Many countries implemented phased distribution plans that prioritized those at highest risk of complications, such as the elderly, and those at high risk of exposure and ...

  6. COVID-19 pandemic in Israel - Wikipedia

    en.wikipedia.org/wiki/COVID-19_pandemic_in_Israel

    'The corona pandemic in Israel') is part of the worldwide pandemic of coronavirus disease 2019 caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first case in Israel was confirmed on 21 February 2020, when a female citizen tested positive for COVID-19 at the Sheba Medical Center after return from quarantine on the ...

  7. Explainer-Beyond Delta, scientists are watching new ... - AOL

    www.aol.com/news/explainer-beyond-delta...

    The continued spread of the SARS-CoV-2 virus has spawned a Greek alphabet of variants - a naming system used by the World Health Organization to track concerning new mutations of the virus that ...

  8. COVID-19 pandemic cases - Wikipedia

    en.wikipedia.org/wiki/COVID-19_pandemic_cases

    The first section contains summary information: the total number of countries and territories with at least 100, 1,000, 10,000, 100,000, a million and ten million cases; the number of cases reported to WHO; the countries and territories that have reported no cases yet to WHO; and two charts showing the 20 countries and territories with the ...

  9. Transmission of COVID-19 - Wikipedia

    en.wikipedia.org/wiki/Transmission_of_COVID-19

    The transmission of COVID-19 is the passing of coronavirus disease 2019 from person to person. COVID-19 is mainly transmitted when people breathe in air contaminated by droplets/aerosols and small airborne particles containing the virus. Infected people exhale those particles as they breathe, talk, cough, sneeze, or sing.