The health ministry on Friday blamed the deaths on human error. One syringe was used for all the children, and the vaccine was not stored properly.
The government says all of the children who died were under the age of 5. It is setting up a commission to determine who is responsible and whether victims’ families will be compensated.
The measles vaccination campaign is targeting more than 2 million children across the country.
The World Health Organization provides some training to South Sudan’s health officials and the U.N. children’s agency provides the vaccines to the government.