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Blindness is the story of an unexplained mass epidemic of blindness afflicting nearly everyone in an unnamed city, and the social breakdown that swiftly follows. The novel follows the misfortune of a handful of unnamed characters who are among the first to be stricken with blindness, including an ophthalmologist, several of his patients, and assorted others, who are thrown together by chance.
The COVID-19 pandemic in Ecuador was a part of the worldwide pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The virus was reported to have spread to Ecuador on 29 February 2020, when a woman in her 70s tested positive for the virus.
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]
Porcine coronavirus HKU15 (PorCov‑HKU15) 2014 Discovered in Hong Kong, China. [37] Humans Coronavirus disease 2019 (COVID‑19) Severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), a strain of SARSr‑CoV: 2019 Discovered in Wuhan, China. [38] [39] Caused the COVID-19 pandemic. Possibly originated from pangolins, horseshoe bats ...
A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 , the virus that causes coronavirus disease 2019 . 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.
SARS-related coronavirus is a member of the genus Betacoronavirus (group 2) and monotypic of the subgenus Sarbecovirus (subgroup B). [13] Sarbecoviruses, unlike embecoviruses or alphacoronaviruses, have only one papain-like proteinase (PLpro) instead of two in the open reading frame ORF1ab. [14]
Illustration of a coronavirus virion in the respiratory mucosa, showing the positions of the four structural proteins and components of the extracellular environment. [15] The M protein is the most abundant protein in coronavirus virions. [8] [5] [4] It is essential for viral replication. [4]
On 15 March 2020, the Guatemalan government confirmed its second case and the first COVID-19 death in the country. an 85-year-old man who arrived from Madrid with his family nine days earlier. [14] The same day, the Guatemalan government cancels all public events and prohibits agglomerations of more than 100 people.