Scientists discover harder-to-detect version of Omicron

The new lineage has about half the gene variations of the original and can’t be detected with typical screening.
Image: Brendon Thorne/Bloomberg

Australia’s Queensland state has found a new omicron lineage in a traveler who arrived from South Africa, health authorities said Wednesday.

The new lineage has about half the gene variations of the original and can’t be detected with typical screening, the state’s acting chief health officer Peter Aitken told reporters. It was found in a traveler who had arrived from South Africa and tested positive for the coronavirus on Saturday, he said.

The new lineage has enough markers “to be able to classify it as omicron, but we don’t know enough about it as to what that means then as far as clinical severity, vaccine effectiveness,” Aitken said. “We now have omicron and omicron-like.”

The discovery comes as Queensland prepares to finally reopen its border to the rest of Australia ahead of schedule next Monday, as more than 80% of the eligible population will be fully vaccinated later this week.

The discovery may be a setback for scientists racing to understand the full impact of the omicron variant, including how virulent the strain is and whether vaccines are effective at reducing risk of severe disease. Although most genetic changes are innocuous as viruses mutate, some can make the mutant more adept at infecting cells, for example, or evading antibodies.

The new lineage has about half, or 14, of the genome mutations of the conventional omicron variant and doesn’t have the s-gene dropout feature, making it harder to track through PCR testing, Aitken said. The discovery is “going to lead to improvements in people recognizing potential spread of omicron in all communities,” he said.

© 2021 Bloomberg

COMMENTS   2

Sort by:
  • Oldest first
  • Newest first
  • Top voted

You must be signed in and an Insider Gold subscriber to comment.

SUBSCRIBE NOW SIGN IN

Rerig!!
Exactly how many people have died worldwide from this Omicron variant???
Is it not correct that the answer is nobody ???
If the answer is wrong please provide details !!!

End of comments.

LATEST CURRENCIES  

USD / ZAR
GBP / ZAR
EUR / ZAR
BTC / USD

Podcasts

Instrument Details  

You do not have any portfolios, please create one here.
You do not have an alert portfolio, please create one here.
INSIDER SUBSCRIPTION APP VIDEOS RADIO / LISTEN LIVE SHOP OFFERS WEBINARS NEWSLETTERS TRENDING

Follow us:

Search Articles:
Click a Company: