Intranasal immunization protected against EHEC O157:H7 colonization and infection in mice at a rate of 90% (Lin et al., 2017).
Immunization of calves with recombinant EHEC O157 EspA, intimin and Tir resulted in the generation of antibodies capable of cross-reacting with antigens from non-O157 EHEC serotypes, suggesting that immunization with these antigens may provide a degree of cross-protection against other EHEC serotypes (McNeilly et al., 2015).
Lin et al., 2017: Lin R, Zhu B, Zhang Y, Bai Y, Zhi F, Long B, Li Y, Wu Y, Wu X, Fan H. Intranasal immunization with novel EspA-Tir-M fusion protein induces protective immunity against enterohemorrhagic Escherichia coli O157:H7 challenge in mice. Microbial pathogenesis. 2017; 105; 19-24. [PubMed: 28163157].
McNeilly et al., 2015: McNeilly TN, Mitchell MC, Corbishley A, Nath M, Simmonds H, McAteer SP, Mahajan A, Low JC, Smith DG, Huntley JF, Gally DL. Optimizing the Protection of Cattle against Escherichia coli O157:H7 Colonization through Immunization with Different Combinations of H7 Flagellin, Tir, Intimin-531 or EspA. PloS one. 2015; 10(5); e0128391. [PubMed: 26020530].