Since the first week of August and as of 11 September 2023, Italian officials report 19 confirmed cases of locally transmitted dengue fever.
These cases refer to three unconnected transmission episodes in the province of Lodi (14 confirmed cases), in the province of Latina (2 cases) and in the province of Rome (3 cases with exposures in different parts of the metropolitan city of Rome for which investigations are underway to verify any epidemiological links). All cases have recovered or are improving.
In addition, 146 cases of dengue imported from other countries have also been reported since the beginning of the year.
The transmission of the dengue virus this season is supported by climatic conditions favorable to the proliferation of its vector, the Aedes albopictus mosquito, now present in much of Europe.
Other arboviruses in Italy this year:
- 6 confirmed cases of Zika Virus (all associated with foreign travel, with a median age of 44 years, 33% male, no deaths)
- 3 confirmed cases of Chikungunya (all associated with foreign travel, with a median age of 41 years, 67% male, no deaths)
- 30 confirmed cases of neuro-invasive infection – TBE (3 cases associated with foreign travel, median age of 59 years, 87% male and no deaths)
- 87 confirmed cases of Toscana Virus (3 cases associated with travel abroad, with a median age of 52 years, 67% female, no deaths)
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- Arkansas: Naegleria fowleri death reported, Linked to a Little Rock splash pad
- Sweden reports significant rise in tularemia in 2023
- Norway: E. coli outbreak linked to hamburgers, 15 cases reported
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- Paraguay reports 9 confirmed hantavirus cases, 3 deaths in 2023 to date
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