THURSDAY, June 16, 2022 (HealthDay Information)
In the event you battled a COVID-19 an infection early within the pandemic, it most likely will not shield you a lot from reinfection with Omicron and its subvariants, a brand new examine warns.
Even a earlier an infection with the unique Omicron variant supplies little safety in opposition to reinfection, researchers report.
They stated the findings from their examine of greater than 730 triple-vaccinated well being care staff in the UK might assist clarify why Omicron reinfection is so frequent, The Guardian reported.
“In the event you have been contaminated throughout the first wave, then you’ll be able to’t enhance your immune response when you have an Omicron an infection,” examine co-author Rosemary Boyton, a professor at Imperial Faculty London, advised the newspaper.
Boyton additionally famous that when “Omicron began flying across the nation, folks saved saying, that is OK, that can enhance folks’s immunity,” however “what we’re saying is it isn’t booster of immunity.”
It is believed that COVID variants reminiscent of Omicron have mutations of their spike protein that assist them evade immune responses, however these findings present the state of affairs is extra advanced, based on co-author Danny Altmann, a professor at Imperial Faculty London.
“It is really worse than that, as a result of the diversifications that the spike [protein] has now are literally inducing a type of regulation or shutdown of immune response,” he advised The Guardian.
This examine targeted on Omicron BA.1, however related findings are probably for different Omicron subvariants, Altmann famous.
Regardless of excessive charges of COVID-19 an infection in the UK, low charges of hospitalizations and deaths recommend that vaccines nonetheless present safety in opposition to extreme illness and loss of life, based on Altmann.
Nonetheless, we’re “not getting herd immunity, we’re not increase protecting immunity to Omicron,” he stated. “So we face not popping out the opposite finish of infections and reinfections and breakthrough infections.”
The examine was printed June 14 within the journal Science.
SOURCE: The Guardian
By Robert Preidt HealthDay Reporter
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