Pfizer, Moderna COVID-19 vaccines protection against South African variant unclear, studies find
New research suggests a concerning coronavirus variant first identified in South Africa diminished Pfizer and Moderna’s vaccine-induced antibody levels, and the level of protection is unclear.
For the Pfizer vaccine, researchers with the University of Texas Medical Branch published findings from a laboratory study in the New England Journal of Medicine.
Mutations on the B.1.351 strain were genetically engineered into previous strains of the virus to analyze the vaccine’s ability to neutralize the pathogen. Scientists tested the pathogen against blood samples from trial participants who received the vaccine.
“Neutralization of the B.1.351-spike virus was weaker by approximately two thirds,” study authors wrote in part, later adding, “it is unclear what effect a reduction in neutralization by approximately two thirds would have on BNT162b2-elicited protection from Covid-19 caused by the B.1.351 lineage of SARS-CoV-2.”
UTMB professor and study …continued .
[Source: Fox News]