Meet the Covid variants

easymon1 said:
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The latest news on the Omicron BA.2 variant. It is 33% more infectious than the original Omicron variant -- and vaccines are more effective in stopping spread of the BA.2 variant than the original Omicron variant.

BA.2 33% more infectious than ‘original’ Omicron COVID strain, study finds
https://globalnews.ca/news/8582784/omicron-subvariant-ba2-more-infectious-study/amp/

The omicron subvariant is more contagious, but vaccinated people are less likely to spread it, study finds
  • Danish scientists found the BA.2 subvariant, which has rapidly become dominant in Denmark, spread more easily across all groups regardless of sex, age, household size and vaccination status.
  • However, only unvaccinated people demonstrated higher transmissibility of BA.2 compared to the BA.1 omicron strain, which could be due to their higher viral load.
  • The probability for spreading within a household was 39% for BA.2 versus 29% for BA.1, the study found.
https://www.cnbc.com/2022/01/31/the...are-less-likely-to-spread-it-study-finds.html
 
gwb-trading said:
The latest news on the Omicron BA.2 variant. It is 33% more infectious than the original Omicron variant -- and vaccines are more effective in stopping spread of the BA.2 variant than the original Omicron variant.

BA.2 33% more infectious than ‘original’ Omicron COVID strain, study finds
https://globalnews.ca/news/8582784/omicron-subvariant-ba2-more-infectious-study/amp/

The omicron subvariant is more contagious, but vaccinated people are less likely to spread it, study finds
  • Danish scientists found the BA.2 subvariant, which has rapidly become dominant in Denmark, spread more easily across all groups regardless of sex, age, household size and vaccination status.
  • However, only unvaccinated people demonstrated higher transmissibility of BA.2 compared to the BA.1 omicron strain, which could be due to their higher viral load.
  • The probability for spreading within a household was 39% for BA.2 versus 29% for BA.1, the study found.
https://www.cnbc.com/2022/01/31/the...are-less-likely-to-spread-it-study-finds.html
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Well... within hour of a study coming out showing the Omicron BA.2 variant is slightly less likely to infect vaccinated people in a household, another take on the study comes out showing BA.2 is slightly more likely to cause vaccinated breakthrough cases. At this point -- just call it a tie. The vaccination breakthrough rate of BA.2 appears to be just about the same as BA.1. Of course, we will wait for further studies -- but we will probably need to wait until BA.2 is dominant to get proper results in context.

Omicron sub-variant BA.2 better than BA.1 at infecting booster vaccinated, warn experts. Details here
https://www.livemint.com/science/he...warn-experts-details-here-11643642425855.html

The BA.2 subvariant of the Omicron COVID variant is not only more transmissible than BA.1, but also more able to infect vaccinated people, including those who have taken booster doses, a new study has revealed. Worldwide, the BA.1 subvariant accounts for more than 98% of Omicron cases, but its close cousin BA.2 is dethroning the original strain in many countries.

The study was conducted by researchers at Statens Serum Institut (SSI), Copenhagen University, Statistics Denmark and Technical University of Denmark. However, it is yet to be peer-reviewed.

(More at above url)
 
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