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Intranasally vaccinated mice control NMFTA1 proliferation in vivo. BALB/c mice were vaccinated i.n. with 2 × 102 CFU of LVS and 21 days later were challenged i.n. with 2 × 102 CFU of NMFTA1. NMFTA1 burdens in the lungs (A) and spleens (B) of five naïve mice and three to six vaccinated mice were determined up to 15 days after challenge. The error bars show standard devations. The results from two independent experiments were pooled.
