Discovery explains why influenza B virus exclusively infects humans; opens door for drug development

(Rutgers University) Researchers at Rutgers University and the University of Texas at Austin have reported a discovery that could help scientists develop drugs to fight seasonal influenza epidemics caused by the common influenza B strain. Their discovery also helps explain how influenza B is limited to humans, and why it cannot be as virulent as A strains that incorporate new genes from influenza viruses that infect other species.