Sochacki T. auteur aut IRD Jourdain Frédéric auteur aut IRD Perrin Yvon auteur aut IRD Noel H. auteur aut IRD Paty M. auteur aut IRD de Valk H. auteur aut IRD Septfons A. auteur aut IRD Simard Frédéric auteur aut IRD Fontenille Didier auteur aut IRD Roche Benjamin auteur aut IRD text journalArticle eng text/pdf born digital access We aimed to identify the optimal strategy that should be used by public health authorities against transmission of chikungunya virus in mainland France. The theoretical model we developed, which mimics the current surveillance system, predicted that without vector control (VC), the probability of local transmission after introduction of viraemic patients was around 2%, and the number of autochthonous cases between five and 15 persons per hectare, depending on the number of imported cases. Compared with this baseline, we considered different strategies (VC after clinical suspicion of a case or after laboratory confirmation, for imported or autochthonous cases): Awaiting laboratory confirmation for suspected imported cases to implement VC had no significant impact on the epidemiological outcomes analysed, mainly because of the delay before entering into the surveillance system. However, waiting for laboratory confirmation of autochthonous cases before implementing VC resulted in more frequent outbreaks. After analysing the economic cost of such strategies, our study suggested implementing VC immediately after the notification of a suspected autochthonous case as the most efficient strategy in settings where local transmission has been proven. Nevertheless, we identified that decreasing reporting time for imported cases should remain a priority. specialized FRANCE CARAIBE 052 050 020 21 18 22-30 2016 1560-7917 https://www.documentation.ird.fr/hor/fdi:010066905 10.2807/1560-7917.es.2016.21.18.30221 1560-7917 [F B010066905] https://www.documentation.ird.fr/hor/fdi:010066905 https://www.documentation.ird.fr/intranet/publi/2016/06/010066905.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2016-06-29 2019-02-03 fdi:010066905 fre