6 cases of COVID-19 XE have been reported in Canada
Global News
With a sixth wave of COVID-19 around the corner, Health Canada confirmed there are at least six cases of the XE recombinant of Omicron in the country.
With a sixth wave of COVID-19 around the corner, Health Canada confirmed there are at least six cases of the XE recombinant of Omicron in the country.
“As of April 6, 2022, the Public Health Agency of Canada (PHAC) is aware of six detections of the XE recombinant lineage of Omicron in Canada,” a PHAC spokesperson wrote in an email.
COVID-19 XE is a recombination of Omicron’s BA.1 and BA.2 subvariants. A recombinant virus is a combination of genetic material from two or more different viruses, in this case, the original variant of Omicron and the more infectious “stealth Omicron.”
The XE recombinant variant was first detected in the U.K. in mid-January, and there have been 637 cases identified in the country since then. Limited cases have also been reported in China and Thailand. The locations of the XE COVID-19 infections, or how infections happened, were not disclosed.
“This particular recombinant, XE, has shown a variable growth rate, and we cannot yet confirm whether it has a true growth advantage,” said Prof. Susan Hopkins, chief medical adviser for the U.K. Health Security Agency.
The World Health Organization (WHO), though, said the variant is believed to be 10 per cent more transmissible than the BA.2 variant.
Recombinant viruses are a fairly common occurrence, especially when there are multiple variants in circulation, according to Hopkins. She noted that recombinants have been discovered throughout the pandemic and similar to other variants, they tend to die off quickly.
While provinces and territories have reduced or entirely removed COVID-19 measures, the federal government’s monitoring program remains in place to identify different variants of COVID-19. In February 2021, the government of Canada invested $53 million into a Variants of Concern Strategy aimed at scaling up surveillance, sequencing and better detection variants.
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