Measles Outbreak in France. Updated Surveillance Data as of May 5, 2015. In France, from January 1, 2008, to April 30, 2015, nearly 23,500 cases of measles were reported (including nearly 15,000 cases reported in 2011 alone). Nearly 1,500 cases developed severe pneumonia, 34 had neurological complications (31 cases of encephalitis, 1 case of myelitis, and 2 cases of Guillain-Barré syndrome), and 10 died. The number of cases dropped sharply in 2012, then remained stable in 2013 and 2014 (859, 259, and 267 reported cases, respectively). Between January 1 and April 30, 2015, 95 cases were reported, 62 (65%) of which were linked to an outbreak in April in the Haut-Rhin department. This is the highest monthly number of reported cases since July 2012. This indicates that the virus remains active. There is a significant risk of the virus spreading beyond the affected department. It therefore remains necessary to verify vaccination status and ensure that all individuals aged 12 months or older and born after 1980 are up to date with two doses of the vaccine. In Poitou-Charentes, no confirmed cases of measles have been reported to the InVS since January 1, 2015.