The World Health Organization (WHO) said it is still monitoring recombinant strains of the SARS-CoV-2 virus, including XE and XD, which are the product of recombination between two sub-variants, BA.1 and FATHER. .2 ohms.
According to the South China Morning Post, the WHO said it was assessing the spread, severity, impact on vaccine effectiveness and risk of reinfection of the newly identified virus strain.
XE and XD are still considered Omicron variants. According to WHO, XE spreads 10% faster than BA.2 Omicron, but XD cannot. XD was recently spotted in several countries including France, Denmark and Belgium.
Meanwhile, Thailand recorded another case of the recombinant mutant XJ Omicron last week, also a mild case, the Bangkok Post reported.
“Recombination occurs. Recombination occurs when at least two strains of the virus infect the same cell and exchange genes. Recombination is common in coronaviruses and is known. Continue to monitor these strains and how they grow and spread , especially if they are more contagious,” said Babatunde Olowokure, WHO’s Western Pacific Emergency Director.
About 6 recombinations between Omicron’s BA.1 and BA.2 have been documented worldwide, but there is no evidence that these recombinations are more toxic (may cause toxicity). seriously ill). ) than the “original” Omiron, so national health authorities advise people not to worry.
Meanwhile, a new statement from India’s health department says the suspected XE Omicron case reported two days ago may not be XE.
Concerns were raised earlier when the Maharashtra state government (Mumbai, India) announced that a sample from a South African fashion designer who tested positive a month ago may be a new strain of XE Omicron. The announcement comes after they matched patient samples to GISAID (Global Genomic Data).
Subsequently, however, the Indian Society for SARS-CoV-2 Genomics (INSACOG) decided to perform a new round of SARS-CoV-2 whole-genome sequencing on this sample at the Institute of Biomedical Genetics. study. study. Country (NIBMG) for confirmation.
In an interview with The Times of India, a senior official at India’s health ministry said the announcement about XE was rushed. “We initially thought it might be XE, but after further analysis of the Fast Q file by genomics experts at INSACOG, we concluded that the genomic makeup of this patient strain was absent. Heritability correlated with the genome of the XE variant.”
However, Indian experts have not yet come to a concrete conclusion which variant this is.