ORIGINAL ARTICLE Trans R Soc Trop Med Hyg 2017; 111: 261–269 doi:10.1093/trstmh/trx046 Nosocomial amplification of MERS-coronavirus in South Korea, 2015 Maimuna S. Majumder, MPHa,b,*, John S. Brownstein, PhDb,c, Stan N. Finkelstein, MDa,d, Richard C. Larson, PhDa and Lydia Bourouiba, PhDe aInstitute for Data, Systems, and Society, Massachusetts Institute of Technology, Cambridge, MA, USA; bComputational Epidemiology Group, Boston Children’s Hospital, Boston, MA, USA; cDepartment of Pediatrics, Harvard Medical School, Boston, MA, USA; dDepartment of Health Care Policy, Harvard Medical School, Boston, MA, USA; eThe Fluid Dynamics of Disease Transmission Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA *Corresponding author: Tel: +1 978 460 3677; E-mail: