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Immunogenicity of RSV-F Fc fusion protein in mice. The mice sera was collected on day 35 and RSV specific titer was analyzed by ELISA using RSV-F his protein as the capture antigen. Data were presented as GMT ± 95 % CI of the endpoint titer (n = 5). A nonparametric test was used to compare each group. (∗, P < 0.05; ∗∗, P < 0.01; ∗∗∗, P < 0.001).
