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TEM of Stx2a phage particles. The phage from strains FRIK804 and EDL933 were similar, as predicted from the genotype data. Also, the phage from strain FRIK1275 harboring stx2a::IS1203v was similar morphologically to the wild-type Stx2a phage (strains EDL933 and FRIK804). Phage particles were obtained by PEG precipitation of cell lysate from mitomycin C-treated cultures.
