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That can make XEC more contagious than previous variants, he says. But Russo says that XEC doesn’t have any major symptoms that are different from previous version of COVID-19. According to the ...
Most people don't have classic symptoms." People with cold symptoms in London (where Covid was spreading rapidly) are "far more likely" to have Covid than a cold. [30] A unique reported symptom of the Omicron variant is night sweats, [31] particularly with the BA.5 subvariant. [32] Also, loss of taste and smell seem to be uncommon compared to ...
A 2022 U.K. study that gathered self-reported data on COVID-19 symptoms via smartphone apps indicated that a sore throat became a more prevalent sign when Omicron's dominance rose in 2021 ...
The symptoms are similar to other COVID strains. Being sick and experiencing a chronic cough, elevated fever, sore throat or a runny nose should prompt you to get a COVID-19 test to ensure you are ...
As of 7 December 2021 it was known that BA.2, unlike BA.1, lacks the characteristic S-gene target failure (SGTF) causing deletion (Δ69-70), by which many qPCR tests have been able to rapidly detect a case as an Omicron (or Alpha) variant, from the previously dominant Delta variant.
For instance, a study showed how COVID-19 may cause microvascular brain pathology and endothelial cell-death, disrupting the blood–brain barrier. [51] [52] Another study identified neuroinflammation and an activation of adaptive and innate immune cells in the brain stem of COVID-19 patients. [53]
Just like other COVID-19 strains that have gained dominance in the U.S. over the last year — JN.1, HV.1, EG.5 aka Eris, and XBB.1.16 or Arcturus — the FLiRT variants part of the omicron family.
Scientists named these variants after Greek letters: alpha, beta, gamma, delta and omicron. Delta, which became dominant in the U.S. in June 2021, raised a lot of concerns because it was twice as likely to lead to hospitalization as the first version of the virus. Then in late November 2021, a new variant came on the scene: omicron.
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