Covid: Omicron subvariant BA.2 appears more contagious, but not more severe, Denmark says

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The BA.2 subvariant of the Omicron variant appears more contagious but not more severe, Danish Health Minister Magnus Heunicke said on Wednesday.

The main BA.1 Omicron variant currently accounts for 98 per cent of all cases globally but in Denmark has been pushed aside by BA.2, which became the dominant strain in the second week of January.

The UK Health Security Agency has designated BA.2 a variant under investigation, saying it could have a growth advantage. There have been 1845 cases of the sub variant in the UK as of Monday.

Preliminary calculations suggest BA.2 could be 1.5 times more infectious than BA.1, Denmark's top infectious disease authority, Statens Serum Institut (SSI), said in a note on Wednesday.

However, an initial analysis by the institute showed no difference in the risk of hospitalisation for BA.2 compared to BA.1.

"There is some indication that it is more contagious, especially for the unvaccinated, but that it can also infect people who have been vaccinated to a greater extent," SSI's technical director Tyra Grove Krause said at the briefing.

This could mean the peak of Denmark's epidemic will extend a bit further into February than previously forecast, Krause said.

BA.2 cases have also been registered in Britain, Sweden and Norway, but to a much lesser extent than in Denmark.

Denmark on Wednesday announced plans to scrap the last of its Covid restrictions by February 1, the latest country in Europe to do so despite record high daily infection numbers.

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