Fig 2. Antigen (Ag) prevalence for lymphatic filariasis in the eight selected primary sampling units (PSUs) in Samoa 1.5 to 3.5 months (2018), 6 to 8 months (2019) and 4.5 years (2023) after one round of triple-drug MDA in August 2018.

Error bars show 95% confidence intervals (CI).