Rapid risk assessment: Clusters of autochthonous chikungunya cases in Italy, first update
Italy is currently experiencing four clusters of autochthonous chikungunya cases in the cities of Anzio, Latina and Rome in the Lazio region, and the city of Guardavalle Marina in the Calabria region. Autochthonous transmission of mosquito-borne infections is not unexpected in areas where Aedes albopictus mosquitoes are established and at a time when environmental conditions are favouring mosquito abundance and activity. This is the second time that Italy is facing an outbreak of autochthonous chikungunya, following an outbreak in the Emilia-Romagna region in 2007. Within the European Union, apart from Italy, only France reported outbreaks of autochthonous cases in the past, i.e. in 2010, 2014 and 2017.
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