A new cluster of Ebola cases has emerged in Uganda, the Africa Centres for Disease Control and Prevention (Africa CDC) said on Thursday, adding that efforts were being made to intensify monitoring and contact-tracing measures.

Three new Ebola cases have been reported in Uganda, bringing the total to 12 since the outbreak began in late January, the African Union's health agency said Thursday.

Uganda's Ebola virus caseload has risen to 12, up from 10, with two people who died early last month being considered probable cases, the World Health Organization said on Wednesday.

An investigation into Uganda's latest Ebola Sudan patient, a 4-year-old boy who recently died, revealed that his mother and newborn sibling died a few weeks earlier from likely Ebola virus infections, the World Health Organization (WHO) African regional office said in its weekly health emergencies update.

The ministry of health said they are continuing with "aggressing Ebola response," which includes the process of contact tracing, management and vaccination of all contacts linked the case

Uganda has reported the second death of a child from Ebola and concerns raised over disease surveillance in the outbreak. A second Ebola patient, a 4-year-old child, has died in Uganda, the World Health Organization said,