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Abstract BackgroundAs Namibia attempts to eradicate locally transmitted cases of malaria, epidemiological strategies, interventions, and outreach require a sound understanding of indigenous knowledge and practice. Research describing local explanatory models of disease can be of value in these efforts by elucidating how disease is interpreted and treated. To understand how perceptions of malaria infection and treatment may influence health-seeking behaviour, cultural models of the disease were explored in two ethnic groups in rural northwest Namibia. MethodsMixed-sex focus groups of 4–8 individuals were conducted in the Kunene region of Namibia. All participants were either Himba or Herero and lived between 14 and 57 km of the regional town centre of Opuwo. Discussion prompts were designed to assess knowledge, beliefs, and norms about malaria, including causes, symptoms, treatment, and prevention. ResultsFocus groups reported universal difficulty in discrimination between malaria and respiratory infections, the former of which was often only diagnosed at the hospital. Some recognized mosquitoes as the source of malaria, particularly the more formally educated Herero, but all also reported other causes. Notably these causes, including dietary and temperature-based origins, were considered unavoidable. Himba and Herero believed that malaria was infectious person-to-person and incorrectly believed that malaria was most common during the wintertime. Both groups also relied on a number of traditional remedies to alleviate symptoms, which were used as primary treatment, with formal healthcare treatment typically only sought when the illness progressed. ConclusionsThese results highlight significant differences between local cultural models and biomedical ones that could be detrimental to malaria eradication efforts. Kunene pastoralists have limited understanding of the causes of malaria, and beliefs about environmental and dietary causes may undermine attempts at prevention. Seeking healthcare solutions to malaria was normative, but secondary to use of at home traditional remedies. These findings indicate public health outreach and information campaigns are needed, particularly in rural groups with less formal education. 

Substantial research indicates that local explanatory models of disease shape heath behaviors. However, less is known regarding how cultural models of disease influence interpretations of vaccines. Vaccination decisions are based around a plethora of social and cultural factors, including beliefs about disease, cultural-historical experiences with healthcare, and recent vaccination experiences. To understand how local interpretations of vaccination influence vaccination-decision making, we explore cultural models of health, vaccine norms, and COVID-19 beliefs and experiences in Himba and Herero pastoralists of the Kunene region of northern Namibia. Mixed sex focus groups were conducted in July and August of 2024 in communities across a rural and peri-urban gradient. Discussion prompts were designed to elicit dialogue on vaccination beliefs, norms, and experiences, as well as their recent experience with COVID-19. Results from these focus groups indicate that there was substantial confusion differentiating vaccinations from other types of injections. For childhood vaccines, immunization is normative and expected. Women were the primary decision-makers for childhood immunization, reflecting the matrilineal bias of Himba and Herero kinship. For adults, while local leaders had some influence interfacing with public health outreach, the decision to get vaccinated was largely a personal one. Beliefs about COVID-19 were interpreted through pre-existing cultural models of illness, and beliefs about the origins of COVID-19 reflected mistrust in international actors. Fears about COVID-19 vaccines were common, particularly concerns about vaccine safety. However, fears of the illness typically overrode fears of the vaccine, and most report receiving the vaccine despite these worries. These results highlight the importance of extending research beyond a knowledge, attitude, practice framework to incorporate local explanatory models and cultural-historical experiences in understanding vaccine-decision making. These features are particularly important in more traditional, rural, and marginalized populations where medical mistrust is common and local explanatory models of disease drive healthcare decision-making.