In MalariaWorld this week there is an article linking an increase of malaria to deforestation in the Amazon region. ‘Malaria, Forest Loss, and Sociopolitical Stability in the Amazon’ by Annika Terrana at Georgetown University argues that malaria resurgence in the Amazon is driven as much by failures in environmental governance and land-use policy as by any remaining gaps in health systems. It examines the long-term consequences of resurgence, traces the link between deforestation and transmission, and outlines policy pathways to realign malaria control with ecological realities.
The major issue that contributes to the Malaria increase, increased illegal gold mining, was discussed in this column in May. The article also blames logging, road construction, and frontier expansion which disturb forest ecosystems in ways that may favour malaria-carrying mosquito species. The author also surmises that extractive activities draw in mobile workforces with limited immunity and inconsistent access to healthcare, accelerating malaria transmission risk. As a result, even marginal increases in mining activity are associated with substantial increases in malaria transmission one to two years later. The evidence discussed is the Yanomami territory information discussed in more detail in this column in May.
The article concludes that the ecological drivers of malaria in the Amazon are accelerating rather than stabilizing. Forest loss, climate extremes, and governance gaps are converging to undermine decades of progress toward elimination, with mounting health, economic, and institutional costs.
We suspect that the increase in malaria cases is due to the increased exposure to toxins as a result of mining and potential interferences with the food sources due to the mining and logging activities.