Enteric populations of Escherichia coli are likely to be resistant to phages due to O antigen expression. - Berryhill BA; Gil-Gil T; Burke KB; Fontaine J; Brink CE; Harvill MG; Goldberg DA; Navas JN; May KL; Grabowicz M; Konstantinidis KT; Levin BR; et al. (MSphere, 2026)