Just 10 countries were responsible for three-quarters of a global surge in measles cases last year, the United Nations (UN) children's agency said Friday, including one of the world's richest nations, France.98 countries reported more cases of measles in 2018 compared with 2017, and the world body warned that conflict, complacency and the growing anti-vaccine movement threatened to undo decades of work to tame the disease."This is a wakeup call.