Low, C., Thoon, K.C., Lin, R., Chua, A., Hishamuddin, P., Tay, J. and Cutter, J. 2013. Possible nosocomial transmission of measles in unvaccinated children in a Singapore public hospital . Western Pacific Surveillance and Response. 3, 4 (May 2013). DOI:https://doi.org/10.5365/wpsar.2012.3.4.008.