IFNL2 and cytomegalovirus infection: Because we observed high levels of basal IFN-λ2 secretion in TOs, which were resistant to HCMV infection, and high induction of IFN-λ2 in DOs infected with HCMV, we next determined whether inhibiting this IFN signaling would alter the sensitivity of DOs or TOs to HCMV infection.