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. 2022 Jun 3;10(6):894. doi: 10.3390/vaccines10060894

Figure 1.

Figure 1

Hemagglutination inhibition antibody titers in SPF chicken following immunization and challenge. Treatment effect was analyzed at each time point by two-way ANOVA with Tukey’s test as post hoc test. The probability of an alpha error was set at 0.05. Different superscripts above bars (mean ± SE) indicate significant difference between groups (p < 0.05). dpi: days post-NDV immunization; dpc: days post-challenge. Group A: Control; group B: Commercial NDV vaccine; group C: inactivated NDV vaccine; group D: inactivated NDV vaccine with LPS; group E: inactivated NDV vaccine with R-848; group F: inactivated NDV vaccine with LPS (25 µg) + R-848 (25 µg) and group G: inactivated NDV vaccine with LPS (50 µg) + R-848 (50 µg).