Fig. 3.

a–e Regional prevalence change in Amhara (yellow), Oromia (red), Southern Nations, Nationalities and Peoples’ Region (SNNPR; turquoise) and Tigray (grey). Prevalence change of AL (a), TT (b), HW (c), SS (d) and SM (e) infections between 1994 and 2019, stratified by region for Amhara (n = 102), Oromia (n = 67), SNNPR (n = 59) and Tigray (n = 21). Pearson’s correlation coefficient (top right corner of each plot with associated p-value) was used to measure the linear correlation over time between parasite prevalence and study date. For other abbreviations, see Fig. 2