Vaccine was safe and well-tolerated and led to a significant increase in norovirus-specific antibodies in serum and breast milk Norovirus-specific IgA in infant stool correlated with breast milk IgA, suggesting passive transfer of immunity to breastfed infants and the potential for a new approach to confer mucosal anti-norovirus immunity to a vulnerable population SOUTH SAN FRANCISCO, Calif., Jan. 15, 2026 (GLOBE NEWSWIRE) -- Vaxart, Inc. (OTCQX: VXRT) (“Vaxart” or the “Company”), a clinical-stage biotechno ...