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Transmission electron microscope images of phages: (A) SE4, (B) SE11, (C) SE13, (D) SE14, (E) SE19, and (F) SE20. Phages SE11, SE19, and SE20 display flexible noncontractile tails and icosahedral heads characteristic of the family Siphoviridae. Phages SE4, SE13, and SE14 display contractile tails and icosahedral heads characteristic of the family Myoviridae.
