Researchers reported discovery of a class of potent, cross‑neutralizing monoclonal antibodies that neutralize the Marburg virus and the related Ravn virus, according to a study published in npj Viruses. The antibodies map conserved epitopes on filovirus glycoproteins and demonstrate broad neutralization in vitro, supporting development of pan‑filovirus therapeutics and improved immunoprotective strategies. The work supplies new candidates for preclinical efficacy and emergency countermeasure pipelines.