Figure 5.

Mf, CFA, and antibody prevalence in children ≤10 years only across the health districts in Samoa. Similar to the data across all ages groups, Upolu had a significantly higher CFA prevalence in children than Savai'i (χ ² = 4.086; df = 1; P = 0.043). No differences for Mf prevalence were observed between the two island groups (χ ² = 1.514; df = 1; P = 0.218). Similarly, no significant differences for Mf prevalence were observed among the health districts (χ ² = 10.694; df = 6; P = 0.098), since Mf positive children were identified only in Leulumoega 1. Complementing this result, Leulumoega 1 recorded a significantly higher antibody (Ab) prevalence (∗) than the other districts (χ ² = 20.6; df = 6; P < 0.001). The health districts of Aua, Leulumoega 2, Safotu, and Tuasivi recorded no CFA positive children. There were no significant differences for CFA prevalence in children among the health districts (χ ² = 2.612; df = 2; P = 0.271).