University of Michigan Apr 24 2025 One dose of the antiviral baloxavir marboxil lowers the chance of transmitting the influenza virus to family members by about 30%, according to research in the New England Journal of Medicine. In the study, a Phase III global trial of baloxavir marboxil (brand name Xofluza) led by University of Michigan epidemiologist Arnold Monto, researchers found that the drug significantly slowed the viral shedding that infects close contacts. Dubbed the CENTERSTONE trial,