Impact of the Lymphatic Filariasis Control Program towards elimination of filariasis in Vanuatu, 1997–2006

Abstract Background Lymphatic filariasis (LF) occurs when filarial parasites are transmitted to humans through mosquitoes. The filarial worms affect the lymphatic system which leads to abnormal enlargement of body parts, chronic pain, disability, and social discrimination. In 1999, a commitment was...

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Bibliographic Details
Published in:Tropical Medicine and Health
Main Authors: Tammy Allen, Fasihah Taleo, Patricia M. Graves, Peter Wood, George Taleo, Margaret C. Baker, Mark Bradley, Kazuyo Ichimori
Format: Article in Journal/Newspaper
Language:English
Published: BMC 2017
Subjects:
Vanuatu
Lymphatic filariasis
PacELF
Elimination
Mass drug administration
Arctic medicine. Tropical medicine
RC955-962
Arctic
Pacific
Online Access:https://doi.org/10.1186/s41182-017-0047-8
https://doaj.org/article/eb6080c14b4943359baec1a352f8f7fd
Description
Summary:Abstract Background Lymphatic filariasis (LF) occurs when filarial parasites are transmitted to humans through mosquitoes. The filarial worms affect the lymphatic system which leads to abnormal enlargement of body parts, chronic pain, disability, and social discrimination. In 1999, a commitment was made to eliminate LF from the Pacific Region by 2010. The Pacific Program to Eliminate LF began, with Vanuatu being one of the 16 endemic countries included in this program. Methods In 1997/1998 a LF prevalence baseline survey was conducted to determine the need for mass drug administration (MDA) in Vanuatu. In 1999, the Vanuatu Lymphatic Filariasis Control Program was established, and nationwide MDA was implemented from 2000 to 2004. LF prevalence was collected during the MDA through sentinel site and spot check surveys, and after 5 years of MDA. MDA implementation methods included health worker training, social mobilization, and culturally appropriate health promotion strategies. Results LF prevalence at baseline was 4.79%; after MDA this declined to 0.16% in 2005/2006. Average MDA coverage ranged from 75.5–81.5% across 5 years. All three evaluation units surveyed in 2005/2006 were below the 1% threshold required to stop MDA. Conclusions The LF Control Program between 1997 and 2006 was successful in reducing LF prevalence to <1%. High MDA coverage was a critical component of this success. This period of the Vanuatu LF Control Program played an important role in helping to eliminate LF in Vanuatu.

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