highly significantp < 0.0001
Individuals aged 5 years and older who reported fever in the last 2 weeks had an elevated risk of having malaria infection in both sites, and the association was stronger for the lower transmission: OR = 38.71 (95 % CI 11.08–135.23), and OR = 2.05 (95 % CI 1.07–3.95) in Selembao, with a highly significant interaction term (p < 0.0001).