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The virus was first confirmed to have spread to Spain on 31 January 2020, when a German tourist tested positive for SARS-CoV-2 in La Gomera, Canary Islands. [2] Post-hoc genetic analysis has shown that at least 15 strains of the virus had been imported, and community transmission began by mid-February. [3] By 13 March, cases had been confirmed ...
The virus was first confirmed to have spread to Spain on 31 January 2020, when a German tourist tested positive for SARS-CoV-2 in La Gomera, Canary Islands. [3] Post-hoc genetic analysis has shown that at least 15 strains of the virus had been imported, and community transmission began by mid-February. [7]
WIV1 Rs4081-S synthetic chimera (with trypsin). In the spike it is a member of clade 2 (including HKU3). [42] WIV1 RsSHC014-S1 chimera [43] Two clade 1 viruses (using ACE2) RsYN2012 and RsYN2016 and one clade 2 virus (not using ACE2) RsHuB2019 in Huh7 cells with trypsin. [44]
SARS‑CoV‑2 is a strain of the species Betacoronavirus pandemicum (SARSr-CoV), as is SARS-CoV-1, the virus that caused the 2002–2004 SARS outbreak. [ 2 ] [ 17 ] There are animal-borne coronavirus strains more closely related to SARS-CoV-2, the most closely known relative being the BANAL-52 bat coronavirus.
Delta (B.617.2) First identified in India in late 2020, the delta variant soon spread across the globe. It became the dominant variant of SARS-CoV-2 until the emergence of omicron in December 2021.
SARS-CoV-2 is the seventh known coronavirus to infect people, after 229E, NL63, OC43, HKU1, MERS-CoV, and the original SARS-CoV. 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). Coronaviruses undergo frequent recombination.
The outbreak has revived memories of the SARS virus when the local Chinese officials initially withheld information about the SARS epidemic from the public and later vastly under-reported the number of people that had been infected, downplayed the risks, and failed to provide timely information that experts say could have saved lives.
[1] [2] [3] As of 13 January 2025, 777,125,657 [4] cases have been stated by government agencies from around the world to be confirmed. Of the 248 recognized countries and territories around the world, 229 have reported cases of COVID-19 [5]. For more international statistics in table and map form, see COVID-19 pandemic by country and territory.