Increased incidence of human West Nile and Usutu infections in Austria, 2024: analysis of data from 2009 to 2024.

ABSTRACT: BACKGROUNDWest Nile virus (WNV) and Usutu virus (USUV) outbreaks in Europe pose growing public health concerns. In Austria, human WNV and USUV infections occur nearly every year since 2009 with notable case number variations.AIMWe analysed annual incidences and spatiotemporal distributions of human WNV and USUV infections in Austria in 2009-2024.METHODSAnnual incidence rates of laboratory-confirmed WNV and USUV cases recorded through the national surveillance were calculated, stratified by age, sex, clinical presentation, exposure place and virus sequence.RESULTSDuring 2009-2024, recorded case numbers were highest in 2024, with 37 WNV (19 male/18 female; median age: 62 years, range: 18-88) and 27 USUV infections (18 male/9 female; median age: 59 years, range: 20-69). Nineteen WNV cases dev

SUBMITTER: Florian DM 

PROVIDER: S-EPMC12862289 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature