The 2012 dengue outbreak in Madeira: exploring the origins Wilder-Smith, A and Quam, M and Sessions, O and Rocklov, J and Liu-Helmersson, J and Franco, L and Khan, K, Eurosurveillance, 19, 20718 (2014), https://doi.org/10.2807/1560-7917.ES2014.19.8.20718