HDAC9 and type 1 diabetes mellitus: Virus infection associated pathways were significantly enriched in overlapped upregulated genes between T1D and antibody positive individuals, such as human T-cell leukemia virus 1 infection, Epstein-Barr virus infection, and salmonella infection (Figures S5A–D).HDAC inhibitors were predicted to be potential targets for T1D and antibody positive individuals (Figure S6).These findings suggest that targeting the shared pathways in autoimmune diseases are recommended during the original viral infection in patients with more than one autoimmune disease, even in individuals at high risk.