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#Italy, Integrated #Surveillance for #WNV & #Usutu Virus - Weekly Bulletin No. 5 (August 14 '25): 102 new human cases

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By G.M.

 


{Summary}

• During current week (7-13 August '25), 102 new cases of human infection with West Nile Virus have been reported; 

• Total Number of Confirmed Cases so far this season have risen to 275 (they were 173 in the last report); 

-- among these: 

- 126 were West Nile Neuroinvasive Disease (WNND): 6 in Piedmont, 7 Lombardy, 5 Veneto, 1 FriuliVenezia Giulia, 4 Emilia-Romagna, 47 Latium, 50 Campania, 1 Basilicata, 3 Calabria, 2 Sardinia, 

- 20 asymptomatic cases among blood donors; 

- 125 West Nile Fever cases, 

- 2 asymptomatic cases and 

- 2 unspecified cases. 

• So far, 19 fatal cases were reported: 1 in Piedmont, 1 Lombardy, 8 Latium, 8 Campania, 1 Calabria. 

-- The Case-Fatality Rate of WNND cases is at 15,1% (during 2018 it was 20%, in 2024 14%). 

• No confirmed cases of Usutu Virus human infection were reported during current week. 

(...)

Source: High Institute of Health, https://www.epicentro.iss.it/westnile/bollettino/Bollettino_WND_2025_05.pdf

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