The presence of Th1 proinflammatory cytokines has previously been demonstrated to trigger inflammation of the bile ducts in the murine model of BA [21,22], therefore we wanted to quantify the expression levels of the proinflammatory cytokines IFN-γ, TNF-α, IL-6, and IL-1β in RRV infection. Here, IL1B is linked to breast angiosarcoma.