Bellini R, Albieri A, Angelini P, Carrieri M
Int J Trop Insect Sci (2021). https://doi.org/10.1007/s42690-021-00649-7

In the summer of 2007, an outbreak of Chikungunya virus (CHIKV) started in the urban areas of Castiglione di Cervia (Latitude 44°15′35.70″ N, Longitude 12°15′47.08″ E) and Castiglione di Ravenna (Latitude 44°15′33.97″ N, Longitude 12°15′17.97″ E), Italy, with secondary foci in other Emilia- Romagna urban areas. At the end of the outbreak a total of 217 confirmed cases were reported (45.6% males, 54.4% females). Aedes albopictus was identified as the mosquito vector species responsible of the outbreak. To estimate the dispersion of infected female mosquitoes, a spatio-temporal analysis on geocoded human case residences was performed using a Geographic Information System (QGIS 3.10). The mean distance between the primary and secondary cases after 7–14 days from the start of the outbreak ranged from 71.58 m (± 32.26 SD) to 83.07 m (± 32.26 SD) while the maximum distance ranged from 130.50 m to 174.93 m. The results obtained from this analysis can be useful to better understand the dynamics of the outbreak and to provide evidence-based data for planning emergence vector control activities focused on imported cases, to avoid the spread of the virus.

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