(A to C) Efficacies and durabilities of different coatings on polyurethane catheters against MRSA (A), P. aeruginosa (B), and C. parapsilosis (C) as determined by the sizes of the zones of inhibition over 28 days. Symbols: ♦, GND-CVCs; ×, M/R-CVCs; ✠, CHX/SS-CVCs; ▪, SPC-CVCs.