Preliminary epidemiological assessment of MERS-CoV outbreak in South Korea, May to June 2015 Cowling, B J and Park, M and Fang, V J and Wu, P and Leung, G M and Wu, J T, Eurosurveillance, 20, 21163 (2015), https://doi.org/10.2807/1560-7917.ES2015.20.25.21163