Lambda variant shows vaccine resistance - study
https://www.jpost.com/health-science/lambda-variant-shows-vaccine-resistance-study-675674
The study they linked to:
SARS-CoV-2 Lambda variant exhibits higher infectivity and immune resistance (2021.07.28)
https://www.biorxiv.org/content/10.1101/2021.07.28.454085v1.full
SARS-CoV-2 Lambda, a new variant of interest, is now spreading in some South American countries...
Since the Lambda variant has dominantly spread according to the increasing frequency of the isolates harboring the RSYLTPGD246-253N mutation, our data suggest that the insertion of the RSYLTPGD246-253N mutation is closely associated with the massive infection spread of the Lambda variant in South America.;
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The Lambda variant (also known as the C.37 lineage) is the newest VOI (designated on June 14, 2021) (WHO, 2021a) and is currently spreading in South American countries such as Peru, Chile, Argentina, and Ecuador
Their study concerned the BNT162b2 (Pfizer-BioNTech) vax.