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. 2011 Jan;17(1):49–54. doi: 10.3201/eid1701.100896

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Sampled villages (black dots) in the 3 main regions of Senegal for pig production, Fatick, Ziguinchor, and Kolda (gray shading). Dashed lines indicate the 700 mm (gray) and 800 mm (black) rainfall isohyets for 2006. The southern limit range of Ornithodoros sonrai tick distribution (750 mm) can be estimated.