Since it was identified in India in early 2021, the Delta virus variant of coronavirus (COVID-19) has become responsible for most COVID-19 infections worldwide. In the UK, Delta remains the dominant variant with the highest rate of infections. Omicron however, although only discovered in South Africa on 24th November 2021 (and declared a variant of concern by the World Health Organization two days later), appears to have a faster transmission rate.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/covid-19-how-do-omicron-symptoms-compare-to-other-variants