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Pulmonary immunization of chickens using non-adjuvanted spray-freeze dried whole inactivated virus vaccine completely protects against highly pathogenic H5N1 avian influenza virus

VaccinationVaccine DevelopmentVirus VaccinePulmonary ImmunizationImmunologyVirologyInfluenza VaccineVaccine DesignMedicinePoultry ScienceEgg-based Vaccine ProductionInfluenza Vaccines