A December 2024 deltacoronavirus outbreak on a Hubei farm killed about 240 piglets despite routine PEDV and TGEV vaccination. The isolated strain SP2403-2 shares up to 99.2% identity with recent Chinese strains, showing how fast this enteric coronavirus moves. Quick answer A porcine deltacoronavirus outbreak in central China in late 2024 killed roughly 20% of affected piglets and about 240 animals overall, even on a farm with routine PEDV and TGEV vaccination. The isolated strain was 97.0 to 99.2% identical to known Chinese strains. The case shows vaccine programs do not cover every coronavirus and leaves room for secondary bacterial disease. Why a deltacoronavirus still matters to producers Porcine deltacoronavirus…