Spotlight on measles 2010: A measles outbreak in a Roma population in Pulawy, eastern Poland, June to August 2009 Orlikova , H and Rogalska, J and Kazanowska-Zielinska, E and Jankowski, T and Slodzinski, J and Kess, B and Stefanoff, P, Eurosurveillance, 15, 19550 (2010), https://doi.org/10.2807/ese.15.17.19550-en