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Direct infection of LmFcRI cells with 135S particles. PV1 (9.6 × 109 virions, 1.3 × 10−10 M) was preincubated with or without PVR-IgG2a (1.3 × 10−8 M), and the infectivities for LmFcRI cells were examined in the presence of 1.3 × 10−8 M PVR-IgG2a. The data represent means from two independent experiments, and error bars indicate standard deviations.
