Outbreaks of arbovirus infections vectored by invasive Aedes albopictus have already occurred and are predicted to become increasingly frequent in Southern Europe. We present a probabilistic model to assess risk of arbovirus outbreaks based on incident cases worldwide, on the probability of arrival of infected travelers, and on the abundance of the vector species. Our results show a significant risk of Chikungunya outbreak in Rome from mid June to October in simulations with high human biting rates (i.e. when ≥50% of the population is bitten every day). The outbreak risk is predicted to be highest for Chikungunya and null for Zika. Simulated increase of incident cases in selected endemic countries has no major impact on the outbreak risk. The model correctly estimated the number of imported cases and can be easily adapted to other urban areas where Ae. albopictus is the only potential vector present.

Estimating the risk of Dengue, Chikungunya and Zika outbreaks in a large European city / Solimini, Angelo G; Manica, Mattia; Rosà, Roberto; Della Torre, Alessandra; Caputo, Beniamino. - In: SCIENTIFIC REPORTS. - ISSN 2045-2322. - 8:1(2018), pp. 1-9. [10.1038/s41598-018-34664-5]

Estimating the risk of Dengue, Chikungunya and Zika outbreaks in a large European city

Solimini, Angelo G
Primo
;
Manica, Mattia
Secondo
;
Della Torre, Alessandra
Penultimo
;
Caputo, Beniamino
Ultimo
2018

Abstract

Outbreaks of arbovirus infections vectored by invasive Aedes albopictus have already occurred and are predicted to become increasingly frequent in Southern Europe. We present a probabilistic model to assess risk of arbovirus outbreaks based on incident cases worldwide, on the probability of arrival of infected travelers, and on the abundance of the vector species. Our results show a significant risk of Chikungunya outbreak in Rome from mid June to October in simulations with high human biting rates (i.e. when ≥50% of the population is bitten every day). The outbreak risk is predicted to be highest for Chikungunya and null for Zika. Simulated increase of incident cases in selected endemic countries has no major impact on the outbreak risk. The model correctly estimated the number of imported cases and can be easily adapted to other urban areas where Ae. albopictus is the only potential vector present.
2018
aedes albopictus; arbovirus transmission; infectious; humans; insect vectors; italy; europe; dengue; chykungunya; zika; models
01 Pubblicazione su rivista::01a Articolo in rivista
Estimating the risk of Dengue, Chikungunya and Zika outbreaks in a large European city / Solimini, Angelo G; Manica, Mattia; Rosà, Roberto; Della Torre, Alessandra; Caputo, Beniamino. - In: SCIENTIFIC REPORTS. - ISSN 2045-2322. - 8:1(2018), pp. 1-9. [10.1038/s41598-018-34664-5]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1276154
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