- Mutant strain has 46 mutations making it more vaccine resistant and infectious
- But there is little sign that it is outcompeting the dominant Omicron variant
- Some 12 cases have been spotted to date, linked to travel to Cameroon
Another Covid variant has been found in France, according to scientists, reports Daily Mail.
About the new mutant strain
The mutant strain has 46 mutations that are thought to make it both more vaccine-resistant and infectious than the original virus. But there is little sign that it is outcompeting the dominant Omicron variant, which now makes up more than 60 percent of cases in France.
The strain was discovered by academics based at the IHU Mediterranee Infection on December 10, but has not spread rapidly since.
WHO’s Investigation
It is yet to be spotted in other countries or labelled a variant under investigation by the World Health Organization.
Professor Philippe Colson, who heads up the unit that discovered the strain, said: ‘We indeed have several cases of this new variant in the Marseille geographical area.
Variant IHU
‘We named it variant IHU. Two new genomes have just been submitted.’
The variant has been dubbed B.1.640.2 and its discovery was announced in a paper posted on medRxiv. This has not been published in an academic journal.
Scientists say the lineage is genetically different to B.1.640, which is thought to have emerged in the Democratic Republic of Congo in September.
What are the mutations contained by this strain?
Tests show the strain carries the E484K mutation that is thought to make it more resistant to vaccines.
It also has the N501Y mutation — first seen on the Alpha variant — that experts believe can make it more transmissible.
It is a distant relative of Omicron, which scientists say likely evolved from an older virus.
About the research paper
‘These observations show once again the unpredictability of the emergence of new SARS-CoV-2 variants and their introduction from abroad.
‘And they exemplify the difficulty to control such introduction and subsequent spread.’
France has good surveillance for Covid variants, meaning any new mutant strains are quickly picked up.
But a growing body of research proves it is also much less likely to trigger severe disease.
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Source: Daily Mail
