Omicron sub-variant now present in more than 50 countries: WHO

Omicron sub-variant now present in more than 50 countries: WHO
The Vocal News

A sub-variant of the highly transmissible Omicron strain of coronavirus has been detected in more than 50 countries.

This fresh warning comes from the World Health Organisation (WHO) as a major cause of concern. Some studies point out that this Omicron sub-variant could be even more infectious than the original one.

Besides, it has rapidly become the dominant variant worldwide and that too, in only 10 weeks from when it was first detected in southern Africa.

In WHO‘s recent weekly epidemiological update, Omicron variant accounts for over 93 per cent of all coronavirus specimens collected in the past month. It is noteworthy here that this counts several sub-lineages: BA.1, BA.1.1, BA.2, and BA.3.

The trend shows a clear rise in cases involving the BA.2 sub-variant; it also includes counts several different mutations from the original one.

The BA.1 and BA.1.1 remain the very first Omicron sub-variants that were identified. Besides, these still account for over 96 per cent of all the Omicron sequences uploaded to the GISAID global science initiative.

“BA.2- designed sequences have been submitted to GISAID from 57 countries to date,” WHO said.

The WHO also admits that not much is known about the complete extent of differences between all the sub-variants so far. But detailed studies can help in understanding their characteristics like transmissibility, immune evasion, and virulence in a better way.

Several recent studies hint that BA.2 is more infectious than the original Omicron strain. Omicron is known to cause less severe disease than previous coronavirus variants like Delta.

Above all, we should not forget that Covid-19 remains a dangerous disease and people should strive to follow all Covid-19 norms.

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