Amazonian rainforest loss and declining malaria burden in Brazil

Deforestation in the Amazon has a complex, non-linear relationship with malaria incidence. While deep-forest mosquito vectors decline with deforestation, leading to reduced malaria transmission, near-forest and non-forest vectors thrive in partially shaded or open landscapes, potentially increasing malaria risk. Anopheles darlingi, the primary malaria vector in the Amazon, exhibits a unique response to forest fragmentation, peaking at 30–70% forest cover. This 'mid-disturbance' behavior challenges simplistic assumptions about deforestation and malaria, suggesting that conservation efforts could either mitigate or exacerbate malaria burden depending on local conditions. The study synthesizes evidence from multiple research perspectives, highlighting the need for nuanced approaches to land-use management in tropical rainforests.

Laporta, G. Z. (2019). Amazonian rainforest loss and declining malaria burden in Brazil. The Lancet Planetary Health, 3(1), e4–e5. https://doi.org/10.1016/s2542-5196(18)30243-2