Figure 1

Location of Oromia Regional State (solid shading) and Jimma zone (vertical shading) within Ethiopia. Detail of Jimma zone indicates study health centres (filled squares) and health posts (filled circles).
Location of Oromia Regional State (solid shading) and Jimma zone (vertical shading) within Ethiopia. Detail of Jimma zone indicates study health centres (filled squares) and health posts (filled circles).