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Fig. 1. Changes in Salmonella and phage PR04-1 titers in worst case water microcosms without peptone. (A) Effect of multiplicity of infection rate, MOI = (pfu L–1)/(cfu L–1), on exponential phase Salmonella cell populations. Open circle (
) no phage (± SE, n = 8); open diamond (
) MOI = 0.3 (± SE, n = 2); open square (
) MOI = 4.5 (± SE, n = 4); open triangle (
) MOI = 21.4 (± SE, n = 2). (B) Changes in phage titers: open diamond () with Salmonella (MOI = 4.5); and open square () without Salmonella; (± SE, n = 4).
