Covid: Omicron variant in Netherlands earlier than thought
Source: BBC
The new Covid-19 variant, Omicron, was present in the Netherlands earlier than previously thought, officials say. It was identified in two test samples taken in the country between 19 and 23 November, which is before the variant was first reported by South Africa. It is not clear whether those who took the tests had visited southern Africa. It was previously thought that two flights that arrived from South Africa on Sunday had brought the first cases of the variant to the Netherlands.
Fourteen people on the flights to the capital, Amsterdam, tested positive for Omicron, among 61 passengers who were found to have coronavirus.However, while the two new samples reveal Omicron was in the Netherlands earlier than thought, they do not predate the cases in southern Africa. The variant was first found in a specimen collected on 9 November, according to the World Health Organization (WHO).
Early evidence suggests Omicron has a higher re-infection risk. But scientists say it will take about three weeks before it is known how the heavily mutated variant impacts on the effectiveness of vaccines. It's unlikely we will ever know precisely when or where Omicron first emerged. South Africa alerted the world to the new variant on 24 November after it found its first case. Since then, other countries have been on the lookout for it and more cases have been identified around the globe thanks to genome sequencing tests.
Not every nation has the ability, however, to carry out these added checks. Even the UK, which is one of the front-runners using the technology, is unable to screen every positive Covid case to determine which variant is the cause. PCR tests, meanwhile, can hint if a Covid case might be Omicron, but cannot confirm it for sure.
Read more: https://www.bbc.com/news/world-europe-59473131
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