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#Italy, Integrated #WNV & #USUV #Surveillance - Weekly #Bulletin No. 7 - 28 August 2025 (summary)

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By G.M.

 


{Summary}

-- During surveillance week from 21 to 27 August, 79 new confirmed human cases of West Nile Virus infection have been reported. 

-- Since the beginning of the epidemic season, the total number of confirmed cases have risen to 430 (they were 351 in the last bulletin); of these:

- 193 were West Nile Neuroinvasive Disease cases: 8 in Piedmont, 12 Lombardy, 14 Veneto, 1 Friuli-Venezia Giulia, 1 Liguria, 13 Emilia-Romagna, 62 Latium, 2 Molise, 64 Campania, 2 Basilicata, 5 Calabria, 1 Sicily, 8 Sardinia), 

- 38 were asymptomatic cases among blood donors, 

- 193 were West Nile Fever cases, 

- 3 asymptomatic and 

- 3 unspecified cases. 

-- Among the confirmed cases, there were 27 fatalities: 1 Piedmont, 1 Lombardy, 1 Emilia-Romagna, 11 Latium, 11 Campania, 2 Calabria). 

- The Case-Fatality Rate in WNND cases is so far at 13.9% (during 2018 it was 20%, in 2024 14%). 

-- One confirmed human case of Usutu virus infection has been confirmed in Latium's province of Latina. 

(...)

Source: High Institute of Health, https://www.epicentro.iss.it/westnile/bollettino/Bollettino_WND_2025_07.pdf

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