Italy records 790 West Nile cases and 370 dengue cases in 2026

Italy recorded 790 confirmed West Nile cases between Jan.

1 and Nov.

3, according to national surveillance figures.

Of those, 424 were neuroinvasive cases, the form affecting the nervous system, and 61 deaths were reported among all confirmed cases.

The reported death rate among locally acquired neuroinvasive cases was 14.3%, compared with 19.6% over the same period in 2025.

Italy also recorded 370 dengue cases, including 76 acquired within the country and no deaths.

The locally acquired dengue cases were linked to five transmission clusters, while two others had no known epidemiological link to other cases.

The country also reported 30 chikungunya cases, one acquired locally, and four Zika cases, all linked to travel abroad.

The figures cover infections reported through Nov.

3; the surveillance bulletin also recorded 19 cases of Usutu virus.