A newly discovered antibody clamps the base of the spike protein of COVID-19 and other SARS viruses. This antibody is effective against multiple variants of the virus; variants that were unaffected by the antibody were also less infectious.
Summary: https://scitechdaily.com/a-tiny-antibody-just-crushed-the-coronaviruss-secret-weak-spot/
Original paper: https://www.nature.com/articles/s41467-025-60250-1