ETIDIOH - NEW

{Excerpts} During the epidemiological week comprised between 24 and 30 July 2025, there were fifty-seven new confirmed cases of human infection with West Nile Virus . -- Since the start of the epidemic season, eighty-nine cases have been reported (there were thirty-two cases in the last week report), of which: -- forty were WNND (West Nile Neuroinvasive Disease): - 2 cases in Piedmont, 1 Lombardy, 3 Veneto, 1 Emilia-Romagna, twenty-three Latium, ten Campania); -- two cases of asymptomatic infection were detected among blood donors (one in Veneto and one in Campania); -- forty-six cases of West Nile Fever have been confirmed:  - one in Lombardy, five in Veneto, thirty-five in Latium, four in Campania, one in Sardinia; -- one asymptomatic case is from Campania; -- Among confirmed cases, eight fatalities have been recorded: one in Piedmont, two in Latium and five in Campania. The case-fatality rate among WNND so far is at 20% (during epidemic seasons 2018 it was 20% and in 2024, 14%)....

{Summary} -- During the Week 17-23 July 2025, Italy reported twenty-seven new cases of human infection with West Nile Virus. -- Since the beginning of the epidemic season, thirty-two confirmed human WNV infection cases have been reportede (there were five cases in the last update), of these: - twenty-three were West Nile Neuroinvasive Disease (WNND): 2 in Piedmont, 2 in Veneto, 1 Emilia-Romagna, 15 Latium, 3 Campania), - one asymptomatic case was detected in a blood donor (Veneto), - six cases of West Nile Fever have been reported (2 in Veneto, 4 Latium), and two asymptomatic cases (Latium), - among the cases, there were two fatalities (1 in Piedmont, 1 in Latium). -- The first confirmed case of the season was detected in Piedmont Region on March 20 2025 (sporadic case), then in Novara Province (July 3rd). -- No confirmed cases of Usutu Virus infection have been detected so far. (...) Source: Istituto Zooprofilattico Sperimentale di Teramo,  https://westnile.izs.it/j6_wnd/home ____...

Abstract Neuroinvasive arboviruses such as tick-borne encephalitis virus (TBEV), West Nile virus (WNV), Usutu virus (USUV), and Toscana virus (TOSV) have (re-)emerged with increasing incidence and geographic range . We analyzed the epidemiology of arboviral infections in Croatia during the 2024 transmission season. A total of 154 patients with neuroinvasive diseases (NID), 1596 horses , 69 dead birds , and 7726 mosquitoes were tested. Viral RNA was detected using RT-qPCR. IgM/IgG-specific antibodies were detected using commercial ELISA or IFA, with confirmation of cross-reactive samples by virus neutralization test. RT-qPCR-positive samples were Sanger sequenced. Arboviral etiology was confirmed in 33/21.42% of patients with NID. WNV was most frequently detected (17/11.03%), followed by TBEV (10/6.49%), USUV (5/3.24%), and TOSV (1/0.64%). WNV infections were reported in regions previously known as endemic, while in one continental county, WNV was recorded for the first time. USUV infec...