(A) Confirmed and suspected measles and rubella cases in Cox’s Bazar from September 6, 2017 to November 25, 2017. (B) Estimated daily effective reproductive number of measles in Cox’s Bazar in the 2017 outbreak using the Wallinga and Teunis method over sliding 14-day windows. Time scale is days since the start of the outbreak on September 6, 2017. Blue shaded areas indicate vaccination campaigns (first campaign from September 16, 2017 to October 4, 2017 and second campaign from November 18, 2017 to December 2, 2017). The 95% credible intervals were estimated using 1000 simulations.