Fig. 5From: Efficient self-assembly and protective efficacy of infectious bursal disease virus-like particles by a recombinant baculovirus co-expressing precursor polyprotein and VP4Humoral immune response to IBDV after VLP vaccination in chickens. Mean ELISA titers induced in SPF chickens after the injection of VLP vaccine or a commercial inactivated IBD vaccine. Error bars. standard deviations; dashed-line, cut-off titer (396). ** p < 0.01 and *** p < 0.001 by ANOVA with Tukey-Kramer post-test compared with the non-vaccinated control groupBack to article page