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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 make for the Omicron variant.
The CDC and WHO assessed that the "public health risk posed by this variant is low compared with other circulating variants". [23] Moderna and Pfizer have stated that their COVID-19 vaccines targeted at the omicron variant remain effective against BA.2.86 [ 24 ] and Novavax has stated its updated protein-based COVID-19 vaccine appears effective ...
Most people will stop testing positive on a rapid antigen COVID-19 test within about 10 days, Cardona says. "Within 10 days after your initial positive test, you should convert back to negative ...
New loss of sense of taste or smell. Shortness of breath or difficulty breathing. Nausea or vomiting. Diarrhea. According to the CDC, the type and severity of symptoms a person experiences usually ...
But the new CDC guidance, which shortens the recommended isolation time from 10 days to five days for people without symptoms, has come under harsh criticism from some health experts who say it ...
On 13 December, the first death of a person with Omicron was reported in the UK. [81] On 16 December, New Zealand confirmed its first case of the Omicron variant, an individual who had traveled from Germany via Dubai. [82] The first death of a person with Omicron was reported in Germany on 23 December [83] and in Australia on 27 December. [84]
The omicron subvariant, an offshoot of the BA.2 variant, now accounts for 1 in 5 new Covid cases, the CDC says. A new version of omicron is gaining a foothold in the U.S., CDC finds Skip to main ...
Some common symptoms that occur as a result are fatigue, cough, shortness of breath, chest pains, brain fog, gastrointestinal issues, insomnia, anxiety/depression, and delirium. [ 89] A difference between acute COVID-19 and PCC is the effect that it has on a person's mind.