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A COVID-19 outbreak in the city of Shanghai, China began on February 28, 2022, [1] and ended on August 7, 2022. [2] The outbreak was caused by the Omicron variant and became the most widespread in Shanghai since the pandemic began two years prior. [7] Authorities responded with mass COVID-19 testing and a strict lockdown of the city in an ...
Omicron variant and other major or previous variants of concernof SARS-CoV-2depicted in a tree scaled radially by genetic distance, derived from Nextstrainon 1 December 2021. Part of a serieson the. COVID-19 pandemic. Scientifically accurate atomic model of the external structure of SARS-CoV-2.
In April 2022, amidst the largest outbreak in China since early 2020 driven by the Omicron variant, China continued to uphold its zero-COVID policy, [60] although a reduction was made to quarantine periods and self-testing kits were made more widely available. [61] Notably, the city of Shanghai was placed in a strict city-wide lockdown. [62] [60]
China's no-holds-barred approach should be able to keep the highly transmissible Omicron variant from exploding within its borders, but the country will still need a long-term strategy as Covid-19 ...
Main articles: SARS-CoV-2 Omicron variant and Variants of SARS-CoV-2. This timeline of the SARS-CoV-2 Omicron variant (November 2021 – February 2022) is a dynamic list, and as such may never satisfy criteria of completeness. Some events may only be fully understood and/or discovered in retrospect. The extensive mutations of its spike proteins ...
These are some of the symptoms of COVID-19: Fever or chills. Cough. Shortness of breath or difficulty breathing. Fatigue. Muscle or body aches. Headache. Loss of taste or smell. Sore throat.
Shanghai authorities announced a city-wide lockdown split in two stages for mass testing on 27 March 2022, after the city reached its highest recorded daily new cases due to the Omicron variant. [15] [16] Starting on 28 March, residents living east of the Huangpu River would go into lockdown for four days, and the other half for the remaining four.
SARS-CoV-2, the virus that causes COVID-19. 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 ...