59 A new study has revealed a significant reduction in the incidence of Burkitt lymphoma (BL) among children in sub-Saharan Africa following the widespread introduction of insecticide-treated bed nets (ITNs). The study, published in JAMA Network Open, highlights the potential secondary benefits of malaria control interventions in the region, where malaria is a significant public health concern. Burkitt lymphoma, an aggressive form of non-Hodgkin lymphoma, is one of the most common childhood cancers in sub-Saharan Africa. The disease has long been associated with chronic malaria infections, particularly in areas where Plasmodium falciparum, the most deadly malaria parasite, is endemic. Given this link, researchers have long speculated that interventions targeting malaria could also reduce the burden of BL. The study, conducted by a team of global health researchers, systematically reviewed data on BL incidence across 17 countries in sub-Saharan Africa, where ITNs were introduced on a large scale during the early 2000s. The results are compelling: the incidence of BL was found to be 44% lower in the period following the introduction of ITNs compared to the years before their rollout. This association remained significant even after adjusting for various confounders, such as baseline malaria prevalence, HIV infection rates, and socioeconomic factors. The analysis, which included data from over 5,200 BL cases, showed that before ITN introduction, the pooled incidence rate of BL was 1.36 per 100,000 person-years. This rate dropped to 0.76 per 100,000 person-years after ITNs became widely used. The study further noted that a one-percentage-point increase in ITN usage was associated with a 2% reduction in BL incidence, underscoring the role of consistent malaria prevention in reducing cancer risk. However, the study also highlighted some variability in the data, with not all regions experiencing the same degree of reduction in BL incidence. For instance, while significant declines were observed in countries like Mozambique, Congo, and The Gambia, other areas such as Mali showed an increase in reported cases after ITN introduction. The researchers suggested that these discrepancies might be due to improvements in cancer diagnosis and reporting rather than a true increase in incidence. Despite these variations, the overall findings of the study support the hypothesis that malaria control measures, particularly the use of ITNs, may have broader health benefits beyond the immediate reduction of malaria cases. The researchers argue that these benefits are likely due to the reduced exposure to malaria during critical periods of childhood development when the risk of BL is highest. The implications of this study are significant, particularly for policymakers and global health organisations focused on both malaria and cancer prevention in Africa. With ongoing challenges such as rising insecticide resistance and fluctuating funding for malaria programmes, the findings underscore the importance of maintaining and expanding ITN distribution to sustain the gains made in reducing both malaria and BL incidence. The study concludes that even though the ecological nature of the data makes it impossible to prove a direct causal link between ITN use and BL reduction, the link is strong enough to warrant further investigation and thought in future public health strategies. Continued efforts in improving cancer surveillance in sub-Saharan Africa are also essential to better understand and combat the burden of childhood cancers in the region.