The objective of ILI_NH is to signal and monitor start, duration and intensity of influenza-like illness or ILI (including COVID-19) waves/appearances among nursing homes (NH) residents to optimize and support provided health-care, -planning, -management and -policies. In addition, ILI_NH monitors locally circulating virus types/subtypes or lineages/sub-lineages and their relationship to global and regional patterns. We have an aggregated dataset on NH level with ILI-cases, ILI-related hospital admissions, and deaths in NH, for the whole season.