Twenty genes unique to co-infection, such as phosphotransferase system protein TreP (NWMN_0438), oxidoreductase (NWMN_2478), deoxynucleoside kinase (NWMN_0518), Na+/H+ antiporter MnhG (NWMN_0599), and oligopeptide transport permease (NWMN_0856), were required for the colonization of both tissues (Fig. 3C). This evidence concerns the gene DCK and coinfection.