Endemic contagious diseases are the main worry in day-to-day animal health management for farmers and their veterinarians. The so-called production diseases are often caused by multiple pathogens and pose the largest threat to animal health and welfare, and thus to the productivity of both terrestrial and aquatic species. DECIDE has developed data-driven decision-support tools for cattle, pigs, poultry and salmonids. These tools help users turn complex health and production data into practical insights for disease surveillance, risk assessment and intervention planning.