In an intensified global effort to eradicate malaria, nations are recognizing that the disease knows no borders and are forging stronger cross-border collaborations. The World Health Organization's (WHO) Global Malaria Programme operational strategy for 2024-2030 highlights the critical need for concerted efforts across the entire malaria ecosystem to alter current trends, which have unfortunately stalled in recent years. This strategy emphasizes four key objectives: developing and disseminating norms and standards, stimulating the development and introduction of new tools and innovations, promoting the use of strategic information for impact, and providing technical leadership. A fifth pillar focuses on context-based country support, underscoring the importance of tailored approaches [1, 2, 3, 8].

Cross-border malaria transmission poses a significant hurdle to elimination efforts. Factors such as porous national borders, mobile and migrant populations, lower access to health services in border areas, and difficulties in implementing prevention programs in remote or challenging terrains all contribute to higher malaria prevalence in these regions [6, 12]. The movement of people across these boundaries can reintroduce the disease into areas that have achieved significant reductions in transmission, making coordinated strategies essential [11, 14].

Regional initiatives are emerging as crucial components of this strategy. In Southern Africa, the MOSASWA initiative (Mozambique, South Africa, and Eswatini) exemplifies a coordinated, cross-border effort to eliminate malaria, acknowledging that transmission is facilitated by people, parasites, and increasingly, extreme weather events [9]. This initiative, backed by significant investment, aims to reduce malaria burden and limit cross-border transmission by strengthening surveillance and expanding reach to mobile populations [9]. Similarly, the "Malaria Elimination 8" (E8) initiative in Southern Africa, involving Angola, Botswana, Mozambique, Namibia, South Africa, Swaziland, Zambia, and Zimbabwe, aims to accelerate elimination through regional coordination, policy harmonization, and prevention of cross-border transmission [5]. These initiatives often include the establishment of malaria border posts to improve testing and treatment access for mobile and remote populations [5].

In the Asia Pacific region, networks like the Asia Pacific Malaria Elimination Network (APMEN) are instrumental in addressing border malaria by fostering technical collaboration, peer-to-peer exchanges, and regional advocacy [11]. Countries like China have demonstrated success in eliminating malaria in border regions despite challenges like cross-border transmission, by implementing stratified risk management, targeted vector control, and strong cross-border collaboration with stable political conditions and partnerships [13].

Despite these efforts, challenges persist. These include funding shortfalls, the impacts of climate change on malaria transmission, vector resistance to insecticides, parasite resistance to treatments, and political instability in some regions that can disrupt control measures and increase retransmission risks [3, 4, 13, 15]. The WHO's operational strategy acknowledges that a "business as usual" approach will not suffice and that new interventions, potentially including innovative tools like genetically modified mosquitoes, will be essential to accelerate progress and counter emerging threats [3].

The success of malaria elimination hinges on sustained investment, robust cross-border surveillance, strengthened health systems, and adaptability to evolving risks. As countries intensify their efforts, a united, collaborative approach that addresses the complex factors driving cross-border malaria is paramount to achieving the ultimate goal of wiping out the disease.