The campaign, led by the federal health ministry, supported by the UN Children's Fund (UNICEF) and the World Health Organization (WHO), entered its second day on 7 August as health officials carried out door-to-door inoculations.
The immunisation drive was expected to cover all 15 states in the north of Sudan and organisers hoped to reach at least 82 percent of children under the age of five during the three-day effort.
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