However, a recent retrospective study involving 63 cirrhotic patients with culture-positive SBP found that the prevalence of GPB was comparable between nosocomial and non-nosocomial infections (45% vs. 42.2%; p = 0.835), though MDR infections were significantly more frequent in the nosocomial group (50% vs. 23.8%; p = 0.046) [59]. The gene discussed is GYPB; the disease is nosocomial infection.