A joint study between Makerere University School of Public Health (MakSPH) and The Open University, UK, is investigating a possible link between maize cultivation and malaria risk in Uganda, as evidence increasingly points to livelihoods and everyday economic activities as key drivers of transmission of the disease.

The research initiative was advanced during a stakeholders’ workshop held on April 15, 2026, at MakSPH’s Resilient Africa Network in Kololo, where a team led by Assoc. Prof. David Musoke of Makerere University and Dr. Kevin Deane of The Open University presented ongoing and previous findings on the social determinants of malaria. The meeting brought together academics, policymakers, and practitioners to examine how agricultural practices, particularly maize farming, may be shaping malaria patterns in both rural and urban settings in Uganda.

The work builds on a growing body of research linking malaria to economic activity. One such study, led by the two researchers and published in Global Public Health in December 2025, found that livelihood activities such as farming, livestock keeping, and night-time work significantly influence malaria exposure. The study identified agriculture, especially maize cultivation near homes, as a key factor associated with increased mosquito density and heightened infection risk.

At the workshop, Dr. Musoke said the new inquiry reflects a broader shift in how malaria is understood, outlining how livelihoods, particularly agriculture, shape exposure through multiple pathways, from crop production and water use to the timing of daily activities that coincide with peak mosquito biting hours. These patterns, he argued, extend risk beyond what conventional interventions, such as insecticide-treated nets and indoor spraying, are designed to address.

Uganda remains one of the countries most affected by malaria, with the disease accounting for a significant share of outpatient visits, hospital admissions, and deaths. It is consistently ranked among the leading causes of illness and mortality, particularly among children under five and pregnant women. Despite sustained investment in prevention and treatment, including widespread distribution of insecticide-treated nets and indoor residual spraying, transmission remains high in many parts of the country. This persistence has increasingly drawn attention to factors beyond conventional interventions, including the role of livelihoods, environment, and everyday exposure to mosquitoes.

“As researchers, our role is to generate evidence, and that evidence should inform decision-making,” Dr. Musoke said. “We do not work in isolation. What we hear from stakeholders matters. We are bringing together different sectors, disciplines, and institutions because this work is still in progress, and we intend to build it collaboratively. Increasingly, research requires not just academics, but policymakers, implementers, and communities to be part of the process.”

The collaboration with The Open University has been central. Dr. Deane said the idea of examining the relationship between maize and malaria emerged from several years of joint research on social determinants with MakSPH. He pointed to a gap in malaria research, which has largely focused on biomedical and indoor interventions, while overlooking the role of livelihoods and outdoor exposure.

“We cannot continue relying solely on bed nets, spraying, and treatment,” Dr. Deane said. “These remain essential, but they are not sufficient for elimination. There is significant outdoor malaria transmission, particularly among adults, and that is linked to how people live and work.”

He added that maize presents a complex case. As one of Uganda’s most widely grown staple crops, it is central to both food security and household income, making it impractical to separate farming from living spaces. This, he said, underscores the need to better understand the relationship and develop responses grounded in evidence and local realities.

Evidence presented during the workshop drew on both community experiences and existing scientific literature. Prior qualitative research by the team found that mosquito populations increase during maize growing seasons, particularly in the evenings. Scientific studies also show that maize pollen can enhance mosquito survival and longevity, potentially increasing their capacity to transmit malaria.

Previous work in Wakiso district further situates maize within a wider set of risk factors. Findings show that agriculture, including crop production and animal husbandry, can create conditions that support mosquito breeding through stagnant water, water storage practices, and environmental changes. These risks are compounded by outdoor activities in the early morning and evening, when exposure is highest. The research also points to the growing role of urban agriculture, which is bringing crop cultivation and potential mosquito habitats closer to residential spaces, altering traditional patterns of transmission.

Ms. Doreen Nabwire Wamboka, in-charge at Namayumba Epicentre Health Centre III in Wakiso District, said the discussions challenged long-held assumptions that malaria is a “well-understood” condition.

“I used to think malaria had been fully researched, that we already knew what we needed to know,” she noted. “I now see that what has been studied is the conventional side of it. There are emerging factors we have not paid attention to. This work is opening up new ways of thinking, even about things we take for granted, like the crops we grow around our homes. We treat malaria as ordinary, yet it is still one of the most common conditions. Understanding these connections could change how we approach the disease.”

The initiative will now combine spatial analysis, entomological studies, and community-based research to better understand how maize cultivation influences malaria risk. It will also involve farmers and other stakeholders in shaping potential interventions, reflecting a broader shift toward co-produced solutions.

The workshop, funded by The Open University, marked an important step in refining this research agenda. As the work progresses, its findings could inform policy and practice not only in Uganda, but also in other malaria-endemic countries where maize is widely cultivated. For now, the research signals a shift from isolated interventions to a more integrated understanding of how livelihoods and environments drive malaria transmission.

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