A team led by scientists at Weill Cornell Medicine, Scripps Research and the University of Chicago has identified an important site of vulnerability on influenza viruses—a site that future influenza vaccines and antibody therapies should be able to target to prevent or treat infections by a broad set of influenza strains.
The scientists, whose results are published Dec. 23 in Nature, found that a small subset of antibodies elicited by experimental and existing influenza vaccines target a site at the base, or anchor, of the influenza virus hemagglutinin (HA) protein—an “epitope” whose significance was not recognized in prior influenza antibody studies.