Abstract
Most visceral leishmaniasis (VL) cases reported in Brazil are from the northeast region, where the disease is strongly linked to poverty. In spite of the still existing inequalities, many social improvements were achieved in the past decades in this region, but the possible impact of these improvements on VL remains poorly investigated. We conducted a cross-sectional study coupled with a spatial analysis of VL cases notified in northeastern Brazil from 2007 to 2017. In total, 21,703 cases were reported during this period, with an annual incidence of 3.6 cases per 100,000 inhabitants. Children under 10 years old and males were more affected, and most cases were from urban areas. Living in municipalities situated in the Cerrado, Amazon or, to a lesser extent, in the Caatinga biomes was a risk factor for VL. This study indicates that the epidemiological profile of VL patients remained unchanged in northeastern Brazil, suggesting that social improvements achieved in this region were not enough to mitigate the risk of this disease among the most affected populations.
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