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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.
SARS-CoV-2 antigens can be detected before onset of COVID-19 symptoms (as soon as SARS-CoV-2 virus particles) with more rapid test results, but with less sensitivity than PCR tests for the virus. [57] COVID-19 rapid antigen tests are lateral flow immunoassays that detect the presence of a specific viral antigen, which indicates current viral ...
Schematics of RT-LAMP amplification, exemplified for SARS-CoV-2detection. Reverse transcription loop-mediated isothermal amplification (RT-LAMP) is a one step nucleic acid amplification method to multiply specific sequences of RNA. It is used to diagnose infectious disease caused by RNA viruses. [1]
The name "coronavirus" is derived from Latin corona, meaning "crown" or "wreath", itself a borrowing from Greek κορώνη korṓnē, "garland, wreath". [8] [9] The name was coined by June Almeida and David Tyrrell who first observed and studied human coronaviruses. [10]
While SARS-CoV-2 RNA has been detected in the urine and feces of some persons infected with COVID-19, [a] there is no evidence of COVID-19 transmission through feces or urine. [19] [82] COVID-19 is not an insect-borne disease; there is also no evidence that mosquito are a vector for COVID-19. [84]
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 ...
In November 2020, a new, marginally more infectious strain of SARS-CoV-2 was identified in the United Kingdom, the SARS-CoV-2 Alpha variant. The strain rapidly spread around the world. With widespread global use of this form of COVID-19 testing, there was a concern that this variant would render rapid testing obsolete.
Severe acute respiratory syndrome (SARS) Severe acute respiratory syndrome coronavirus (SARS‑CoV or SARS‑CoV‑1), a strain of severe acute respiratory syndrome–related coronavirus (SARSr‑CoV) 2002 Discovered in Foshan, China. [29] Caused the 2002–2004 SARS outbreak. Possibly originated from horseshoe bats. [30] Humans Common cold
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