. 2016 May 12;6:25720. doi: 10.1038/srep25720

Table 1. Protective efficacy of the immunized SPF chickens after being challenged with the highly virulent NDV strain F₄₈E₉.

Groups	Mortality/Total	Morbidity (%)	Protective efficacy (%)
PBS i.m.	10/10	100	0
Blank Ag@SiO₂-NPs i.m.	10/10	100	0
pVAX I-F (o) DNA i.m.	3/10	30	70
pFDNA-Ag@SiO₂-NPs i.m.	2/10	20	80
pFDNA-Ag@SiO₂-NPs i.n.	0/10	0	100

Table 1. Protective efficacy of the immunized SPF chickens after being challenged with the highly virulent NDV strain F48E9.