The disclosure provides a method for preventing infection and microbial ingress in medical device connections between peritoneal dialysis transfer sets and peritoneal dialysis catheters. A peritoneal dialysis transfer set includes a male connector with a distal tip and a recess at the distal tip configured to deliver and confine an antimicrobial composition into solution within a cavity formed by the recess. The surface of the recess includes an antimicrobial composition. In certain implementations the antimicrobial composition contains chlorhexidine acetate.
