Story perspectives

Protein Vaccine Generates Broad HIV Antibodies in 50% Monkeys

6/30/2026

Summary

Story summary

Researchers tested an adjuvanted protein germline-targeting vaccine in outbred nonhuman primates and generated bnAb-class memory B cells.
bnAb lineages appeared in at least 50 % of the animals, reaching up to 67 % breadth, and serum activity arose in 44 % with titers predicted to protect diverse HIV isolates.
Vaccine-induced bnAbs mimicked human bnAb interactions with the HIV envelope, matching design predictions and proving the germline-targeting approach can reproducibly elicit prespecified bnAb classes.

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Story summary

Researchers tested an adjuvanted protein germline-targeting vaccine in outbred nonhuman primates and generated bnAb-class memory B cells.
bnAb lineages appeared in at least 50 % of the animals, reaching up to 67 % breadth, and serum activity arose in 44 % with titers predicted to protect diverse HIV isolates.
Vaccine-induced bnAbs mimicked human bnAb interactions with the HIV envelope, matching design predictions and proving the germline-targeting approach can reproducibly elicit prespecified bnAb classes.