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Suscettibilit? della zanzara tigre italiana al virus Zika
We report a study on vector competence of an Italian population of Aedes albopictus for Zika virus (ZIKV). Ae. albopictus was susceptible to ZIKV infection (infection rate: 10%), and the virus could disseminate and was secreted in the mosquito’s saliva (dissemination rate: 29%; transmission rate: 29%) after an extrinsic incubation period of 11 days. The observed vector competence was lower than that of an Ae. aegypti colony tested in parallel.
Un articolo a cura di esponenti dell ISS.
La nostra specie di zanzara, Aedes Albopticus ( volgarmente zanzara tigre) risulta suscettibile al virus Zika, tasso di infezione pari al 10% e il virus ? presente nella saliva da dove pu? essere trasmesso, anche se in maniera molto meno efficace della cugina Aedes Aegypti. Il rischio di diffusione autoctona nel nord Italia ? ritenuto basso.
Viene inoltre data dimostrazione di un assente trasmissione transovarica ( dalla madre alle larve) del virus in entrambe le specie di zanzare.
