In this respect, a recently developed lateral flow test for diagnosis of peritonitis may not only be useful for the detection of early infection based on elevated levels of IL-6 and MMP-8 in PD effluent (Goodlad et al. 2020) but in a more quantitative way even contribute to the distinction between culture-positive episodes and cases of no growth, as suggested in the present study. Here, MMP8 is linked to peritonitis.