Inflammation, with increased levels of immune markers including CRP, is well established in schizophrenia (Fernandes et al., 2016; Fond et al., 2018; Halstead et al., 2023; Miller et al., 2014; Proctor et al., 2015; Wang et al., 2017; Yuan et al., 2019). Here, CRP is linked to schizophrenia.