Keep an eye on COVID “Deltacron XBC”, a hybrid between the Delta species

medical genome center Mahidol University Ramathibodi Hospital Faculty of Medicine In a post on Facebook, the Center for Medical Genomics said: Scientists around the world are watching. Covid-19 species “XBC Deltacron” At the end of year 3, paOmicronXBC, XAY, XBA and XAW, especially Deltacron “XBC”, mutate differently from Deltacron.COVID-19 The original “Wuhan” species, the largest up to more than “130” jobs.

Decoding the whole genome of “Deltacron”, it can be estimated that it is a COVID virus that has the potential to attack the lungs like “Delta” and can spread as fast as “omicron”

Keep an eye on COVID

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At the beginning of the year 2022, there were reports of disclosures “Deltacron” In the Philippines for a while he disappeared. There was no widespread cause. But in late 2022, “Deltacron” was found in the Philippines again in the form of the XBC, XBA, XAY and XAW strains of COVID.

In the worst case scenario Delta-Omicron Hybridit can be as dangerous as with the Delta species It killed about 3.4% of those infected, almost double the death rate of Omicron. According to a 2022 study published in the journal Nature Reviews Immunology, “deltacrons” may also have the ability to infect as quickly as omicrons.

But predicting the virulence of an emerging hybrid or subspecies is difficult. Because scientists are unsure why omicrons seem to cause COVID-19. less severe compared to delta

Experts around the world do not fully understand why.COVID-19 therefore a change from The change from “Lower Respiratory Disease” in the first 2 years of Delta and pre-emergence strains to “Upper Respiratory Disease” with less severity in the third year This is in addition to the spike proteins that the virus used to attach to human cells and avoid immunity.

Why should Thailand be worried?

Because the Philippines is one of the ASEAN countries near Thailand, there are currently 81 cases of Omicron XBB infections, along with 193 XBC hybrids found in 11 states, while Singapore, Malaysia, Indonesia, Brunei, Cambodia XBB and XBC also available.

ASEAN scientists helped decode the genetic code of 2019-coronavirus and shared it on the global genetic code database of COVID-19 “GISAID”.

XBB hybrids found in

  • Singapore 1137 cases 12.154%
  • Indonesia 90 cases 0.623%
  • Brunei 77 cases 4.254%
  • Malaysia 32 cases 0.358%
  • Philippines 20 cases 0.490%
  • Cambodia 1 case 0.197%

XBC hybrids found in

  • Philippines 35 cases 0.857%
  • Brunei 15 cases 0.829%
  • Singapore 1 person 0.011%
  • Malaysia 1 person 0.011%

According to the global genetic code database of COVID “Gisaid (GISAID)), hybrids “XBB” and “XBC” were not found in Thailand.

Reference: The Center for Medical Genomics