Polio vaccination campaign started on Tuesday in Tonj South County of Warrap State.
Polio Vaccination County Social Mobilizer William Marial Mayen said the vaccination targets children from zero to five years old, Don Bosco Radio reported.
He called on mothers to allow their children to be vaccinated as vaccination is free of charge.
Mr Mayen said they will carry out polio vaccination in five Payams and Bomas of Greater Tonj.
The County Social Mobilizer said the campaign aimed at preventing children from polio diseases.
Mr Mayen urged all people of Greater Tonj to allow their children to be vaccinated against polio.