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Wall teichoic acid (WTA)-dependent infection of S. aureus phage CSA13. (A) Phage CSA13 lysate was spotted onto lawns of wild-type RN4220, (B) ΔtagO mutant, and (C) tagO-complemented strains. Each number indicates the titer (PFU/mL) of phage CSA13 spotted on the plate. Plaque formation indicates successful adsorption and infection by phage CSA13.
