Five years of post-validation surveillance of lymphatic filariasis in Thailand.

Background: 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. This article describes measures and progress made in Thailand with post-validation surveillance (PVS) of LF from 2018 until 2022.

Methods: The implementation unit (IU) is a sub-village in 11 former LF endemic provinces.

The first case report of subcutaneous dirofilariasis caused by in Thailand.

Dirofilariasis is a rare zoonotic disease which is commonly caused by two species; and . Humans are accidental dead-end hosts of the parasites, and the infection is mainly asymptomatic. Here, we report the case of a 54-year-old Thai woman who experienced a painful left shoulder nodule and eosinophilia for 1 month.

Correction to: How Thailand eliminated lymphatic filariasis as a public health problem.

After publication of this article [1], it was brought to our attention that figure 2 did not display correctly. The correct figure 2 is as below.

How Thailand eliminated lymphatic filariasis as a public health problem.

Background: Lymphatic filariasis is endemic in nine of the eleven Member States of the World Health Organization South East Asia Region. This article describes the intensive interventions with the National Programme for Elimination of Lymphatic Filariasis in Thailand since its launch in 2001 till the validation of its elimination in 2017.

Methods: A baseline epidemiological survey was initiated in 2001 to identify both brugian and bancroftian filarial areas and delineate its endemicity.