Fig. 1.

Maps of Sergipe and South America (insert) showing the place of residence of each case together with its two matched controls included in the study. Map templete: ©OpenStreetMaps contributors (open-source). ©CartoDB, CartoDB attribution

Maps of Sergipe and South America (insert) showing the place of residence of each case together with its two matched controls included in the study. Map templete: ©OpenStreetMaps contributors (open-source). ©CartoDB, CartoDB attribution