SGIV+RGNNV co-infection exacerbates host mortality by triggering excessive immune responses and inducing metabolic dysregulation in leopard coral grouper (Plectropomus leopardus) - Jinpeng Chen; Haifei Liu; Kun Wang; Fenghua Jiang; Shen Li; Liqun Wang; Qiwei Qin; Min Yang (Aquaculture, 2026)