Fig. 8From: Intranasal immunization with O-2′-Hydroxypropyl trimethyl ammonium chloride chitosan nanoparticles loaded with Newcastle disease virus DNA vaccine enhances mucosal immune response in chickensHistopathological analyses of glandular stomach, duodenum, and myocardium obtained from healthy chickens and those challenged with the highly virulent NDV strain F48E9. Tissues of the glandular stomach, duodenum, and myocardium from the PBS i.m., blank O-2’-HACC i.n., live attenuated NDV vaccine i.m., and O-2'-HACC/pFDNA i.m. and i.n. groupsBack to article page