Retrieved 25 March 2022. Retrieved 27 December 2021. In a review two weeks later, covering 16 February to 17 March, BA.Next
Retrieved 8 December 2021.
The WHO says it's not yet clear if the Omicron variant is spread from person-to-person more easily than other variants, including Delta. What are the symptoms of Omicron? Retrieved 10 January 2022. Retrieved 21 December 2021.
Retrieved 19 December 2021.
Ireland and South Korea also reported their first cases.Next
Health officials expect vaccine effectiveness to be comparable to that of the original omicron, and it's likely most people in the US from COVID-19 vaccines, booster shots or prior infection with the virus.
With other COVID-19 variants, younger people have generally had milder symptoms. S-gene dropout or target failure has been proposed as a shorthand way of differentiating Omicron from Delta. Among mostly vaccinated people infected , cough and runny nose showed up in more than three-quarters of the 81 cases.Next
Retrieved 7 January 2022.
Retrieved 4 December 2021. Retrieved 24 December 2021. While that is good news, the risk of severe illness remains, particularly in individuals with risk factors.Next
Retrieved 31 December 2021.
Retrieved 28 January 2022. Retrieved 28 November 2021. One reason for this may be the variant's high number of mutations in the spike protein.Next
Retrieved 2 January 2022.