The author(s) assessed NTD's burden, and NTD's are important public health problem. Although the study aims to compare the NTD's burden in "rural and urban slum settings", the definition for rural slum in the Ethiopian context is confusing. Because the sparse settlement of the population in the rural Ethiopia, the definition of rural slum is confusion. In addition, the method section does not mention about the definition of rural slum and its selection procedure. Most importantly, the significance and justifications for the need of comparative study between the so-called rural slum and urban slum, is not clear.