‘Stealth Omicron’: All you need to know about fast-spreading sub-strain
Sub-strain BA.2 Omicron was detected in November last year, but began to spread recently in recent weeks. The situation is very bad in Denmark, where Covid-19 infection has experienced a rapid increase.
The new sub-variants of Omicron have raised fears that the more transmitting Coronavirus strains can trigger a larger Covid-19 wave globally.
Health authorities in the UK have established sub-variants, called BA.2, as 'variants in investigations'. This is an initial investigation step before being appointed as a 'variant of concern' (VOC), which is currently Omicron BA.1 at this time.
Sub-lineage, nicknamed the 'stealth omicron', was appointed in early December last year and on January 10 this year, 53 BA 2 sequences have been identified in the UK.
How many doses of the sub-strain have the...