In Wuchereria bancrofti areas, filaria antigen test strips (FTS) are used, and in Brugia malayi areas, antibody test kits (Filaria DIAG RAPID) are used. Human blood surveys are targeted in 10% of IUs each year. The implementation unit (IU) is a sub-village in 11 former LF endemic provinces.
This article describes measures and progress made in Thailand with post-validation surveillance (PVS) of LF from 2018 until 2022. The World Health Organization (WHO) validated Thailand in 2017 as having eliminated lymphatic filariasis (LF) as a public health problem with recommendations for continued surveillance.
