Featured NTD Publication - An evaluation of diagnostic tools to eliminate Bancroftian Filariasis

17 January 2012

Lymphatic filariasis (LF), a mosquito-borne parasitic disease, is a candidate for elimination largely because of the success of mass drug administration (MDA) campaigns, in which entire at-risk populations are given a once-yearly regimen of single-dose treatment with two medications. As a result, a diagnostic tool is needed to determine when the prevalence of LF has fallen below the threshold for sustained transmission so that MDA programs can be stopped.

A Multicenter Evaluation of Diagnostic Tools to Define Endpoints for Programs to Eliminate Bancroftian Filariasis

Katherine Gass, Madsen V. E. Beau de Rochars, Daniel Boakye, Mark Bradley, Peter U. Fischer, John Gyapong, Makoto Itoh, Nese Ituaso-Conway, Hayley Joseph, Dominique Kyelem, Sandra J. Laney, Anne-Marie Legrand, Tilaka S. Liyanage, Wayne Melrose, Khalfan Mohammed, Nils Pilotte, Eric A. Ottesen, Catherine Plichart, Kapa Ramaiah, Ramakrishna U. Rao, Jeffrey Talbot, Gary J. Weil, Steven A. Williams, Kimberly Y. Won and Patrick Lammie 

To determine the best diagnostic tool available, a multi-country study was conducted to assess the performance of seven diagnostic tests on a panel of patient specimens. The selection of the most effective diagnostic test was based on an evaluation of each test's accuracy, technical requirements, programmatic feasibility and reliability, as well as confidence in test performance. This study found advantages and disadvantages to each test. Based on the data and experiences it was determined that the ICT test, a point-of-care rapid card test, is the preferred diagnostic tool for use in defining the end-point of MDA, although the Og4C3 test provides a suitable laboratory-based alternative.

Read the full article in PLOS Neglected Tropical Diseases