Correction: Baicalin attenuates PD-1/PD-L1 axis-induced immunosuppression in piglets challenged with Glaesserella parasuis by inhibiting the PI3K/ Akt/mTOR and RAS/MEK/ERK signalling pathways

更正：黄芩苷通过抑制PI3K/Akt/mTOR和RAS/MEK/ERK信号通路，减弱PD-1/PD-L1轴诱导的副猪格氏菌感染仔猪的免疫抑制。