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Population titers of Erwinia amylovora bacteriophages from five host isolates grown on NA or NAS. (A) ϕEa21-4 (Myoviridae); (B) ϕEa35-7 (Siphoviridae); (C) ϕEa1(h) (Podoviridae). Results are means and standard deviations from three independent experiments.
