Modified Sendai virus vaccine and imaging vector

An immunogenic recombinant mutant Enders Sendai viral vector comprising

• a) a modified Enders Sendai virus L gene that encodes a modified L protein containing one or more amino acid mutations of the wild type L protein selected from the group consisting of wild type amino acid S to mutant amino acid G at position 155, wild type amino acid R to mutant amino acid K at position 258, wild type amino acid G to mutant amino acid E at position 466, wild type amino acid G to mutant amino acid E at position 482, wild type amino acid S to mutant amino acid R at position 581, wild type amino acid Q to mutant amino acid R at position 717, wild type amino acid T to mutant amino acid I at position 800, and wild type amino acid R to mutant amino acid K at position 852, and
• b) one or more heterologous genes that comprise a gene encoding an antigen.