Posting on Facebook, Professor of Health Policy Elias Mosialos, of the Imperial College and the London School of Economics and Political Science (LSE), announces a scientific study according to which, those who are infected with the coronavirus “Omicron”, develop strong antibodies that prevent them from being re-infected by the much more morbid Delta mutation. “
As he points out:
“A group of researchers from South Africa who deal with the coronavirus, investigated whether the ability we have to neutralize if we stick the omric variant enhances the ability to neutralize the delta variant.
In the study vaccinated and unvaccinated participants who had been infected with the virus in the micron wave in South Africa and had molecularly certified that they were infected with the micron and not the delta.
So they isolated blood plasma from 15 participants, where 11 of them were admitted to the hospital due to Covid-19 symptoms, but none needed oxygen supply. Participants were sampled immediately after the onset of symptoms, and approximately 2 weeks later. Two of the 15 did not develop neutralizing antibodies and were excluded from the assay. Of the other 13 participants, 7 were vaccinated (3 with two doses of Pfizer and 4 with Johnson and Johnson).
The ability to neutralize the micron variant was expected as this is the variant of the virus that infected these individuals. Measurements showed an increased antibody response (14-fold) to the variant during the assay. However, the same individuals – especially those who were vaccinated – also developed enhanced neutralization versus the delta variant (which also had a 4.4-fold increase in neutralization over 2 weeks).
That is, it appears that infection in individuals who have been infected with the micron may lead to delta re-infection protection. This is obviously good news, but it needs to be confirmed in a larger sample of vaccinated and unvaccinated people, and it would be even more interesting to see if this applies to older adults as well as asymptomatic carriers of the micron.
If this study reflects the picture we will see, then it will reduce delta infection rates.
Emerging epidemiological data – currently – indicate that omicron leads to milder symptoms in vaccinated.
Together, they suggest that omicron infection may have a positive effect on the likelihood of serious illness if one subsequently catches the delta that continues to circulate, and ultimately carries less weight than expected in the health system.
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