Analysis of the trend of malaria prevalence in Ataye, North Shoa, Ethiopia between 2013 and 2017

Background: Malaria is one of the major public health problems worldwide. In Ethiopia, there is a significant decline in disease burden; however, the overall trend of malaria prevalence is not studied or well-documented in different localities. Hence, the initiation of this study was to analyse the 5-year trends of malaria prevalence in Ataye, North Shoa, Ethiopia. Methods: A retrospective laboratory record review was conducted in Ataye Hospital, North-Shoa, Ethiopia. Malaria data reported from 2013 to 2017 were carefully reviewed from January to March 2018. Results: A total of 31,810 blood films were prepared and examined from malaria-suspected patients at Ataye District Hospital from 2013 to 2017. Of the examined blood films, 2670 (8.4%) were microscopically confirmed malaria cases. The trend of malaria prevalence in the present study seems non- fluctuating. Plasmodium falciparum and Plasmodium vivax accounted for 2087 (78.2%) and 557 (20.9%) cases, respectively. From total positive cases, 1.0% of cases were mixed P. falciparum/P. vivax infections, and that no Plasmodium malariae and Plasmodium ovale infections were found by malaria microscopists. Malaria cases were higher in males 1584 (5.0%) than females 1086 (3.4%). With regard to age groups, higher numbers of malaria cases were observed in age group 15-45 years old. Malaria cases were high in spring (September to December), which is a peak malaria transmission period in Ethiopia. Conclusion: Malaria is still among the major public health problems in the country. P. falciparum is the dominant species in the study area followed by P. vivax. Enhancing malaria detection and speciation skill of laboratory personnel and scaling up malaria control and prevention activities are very crucial to significantly reduce the burden of malaria in the study area.