Omicron variant no more severe than original strain: WHO

Geneva: The World Health Organization on Tuesday confirmed that the BA.2 variant of the Omicron Coronavirus strain is not more severe than the original.

According to Maria Van Kerkhove, a senior WHO official who was attending an online question and answer session, WHO has not been seeing a difference in severity of BA.1 compared to BA.2 based on a sample of people from various countries.

"So this is a similar level of severity as it relates to risk of hospitalisation. And this is really important, because in many countries they've had a substantial amount of circulation, both of BA.1 and BA.2," she said.

Van Kerkhove, who leads the technical side of the WHO's Covid-19 response team, was reporting the findings of a committee of experts tracking the evolution of the virus.

Their conclusions will come as a relief to countries such as Denmark, where the BA.2 variant of Omicron has circulated widely.

The WHO said in a statement that initial data suggests the new BA2 variant "appears inherently more transmissible than BA.1," and that further studies are ongoing to discover why this is the case.

"However the global circulation of all variants is reportedly declining," it added.

Coronavirus has killed more than 5.8 million people worldwide, according to an AFP tally compiled from official sources on Tuesday.

Taking into account excess mortality linked to Covid-19, the WHO estimates the true death toll could be two to three times higher.