West Nile fever in Europe in 2017; updated 22 September
Between 14 and 21 September 2017, Italy reported 20 cases, of which two cases were reported in a newly affected area. Romania reported 17 cases, in which one area is newly affected. Four cases in previously affected areas were reported by Hungary. Greece reported four cases of which two areas are newly affected. One domestically acquired case in Greece with an unknown place of infection has been reported. Romania reported one death due to West Nile fever.
Factsheet about West Nile virus infection
West Nile virus is a mosquito-borne flavivirus that is maintained in an enzootic cycle between mosquitoes and birds. Humans and horses are incidental dead-end hosts.Read more
West Nile virus infection
Most human infections are asymptomatic and the majority of clinical cases are mild and present with flu-like symptoms. In more severe cases there may be signs of encephalitis, meningo-encephalitis or meningitis.Read more
West Nile fever in Europe in 2017 and previous transmission seasons
Since the beginning of the 2017 transmission season and as of 21 September 2017, Italy has reported 47 cases, Greece has reported 45 human cases, Romania 39 cases, Hungary 14 cases and Austria has reported two cases. In addition, Serbia has reported 28 cases, and Israel has reported nine cases.
In equids, Member States reported 79 West Nile fever cases through ADNS: 65 in Italy, 11 in Greece and three in Hungary.