Figure 1From: Intramuscular immunization of mice with live influenza virus is more immunogenic and offers greater protection than immunization with inactivated virusAverage cytokine concentration (pg/ml) in serum and BAL before (none), 1 day after IM vaccination with inactivated and live A/WI/05 and 1 day after IN inoculation with live virus. The results shown are the average concentration measured in sera or BAL from 3 mice in each group. Significant difference with non-immunized group denoted with *, significant difference with UV-inactivated IM immunized group denoted with # (ANOVA with Bonferroni post-test, significantly different when p ≤ 0.05).Back to article page