Immune cell subsets in patients with bipolar disorder or schizophrenia with history of childhood maltreatment

•Bipolar disorder and schizophrenia are associated with childhood maltreatment.•Bipolar disorder patients with childhood maltreatment exhibit high CD3 + CD8 + cytotoxic T lymphocyte levels and ow CD45RA+CCR7+CD8+ naïve CD8+ T cells.•Bipolar disorder patients with childhood maltreatment exhibit high CMV antibody levels.•BD cell subset profiles along CMV suggest cellular exhaustion/senescence.•SZ having experienced CM exhibit lower CD14+ monocyte levels.