Standardized incidence ratio dataset of human West Nile Virus in Italy (2012-2024)

West Nile virus (WNV) is primarily transmitted by Culex pipiens mosquitoes feeding on infected birds, while humans and other mammals serve as dead-end hosts. Although first detected in horses in Italy in 1998, human cases only emerged after the implementation of a multispecies surveillance program in 2001, with a major outbreak occurring in 2008 in northern regions.

In this dataset, we computed the Standardized Incidence Ratio (SIR) for human West Nile virus (WNV) cases at the provincial level in Italy over the period 2012–2024.

The data are provided in a CSV file, where each row corresponds to a province that reported at least one confirmed case during the study period, and each column contains annual SIR values. Provinces with no reported cases in a given year are marked as NA. Additionally, for each province, we calculated summary statistics including the temporal gradient, mean, standard deviation, maximum, and minimum SIR values, based on the available data.