Journal
ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY
Volume 105, Issue 8, Pages 567-578Publisher
MANEY PUBLISHING
DOI: 10.1179/2047773211Y.0000000008
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Funding
- GlaxoSmithKline
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Ongoing transmission of lymphatic filariasis (LF) was assessed in five Samoan villages by measuring microfilaraemia (Mf), circulating filarial antigen (CFA) and antibody prevalence. Compared to the other villages, Fasitoo-Tai had a significantly higher Mf prevalence (3.2%), CFA prevalence (14.6%) and antibody prevalence in children (62.0%) (P<0.05). Puapua had a significantly lower CFA prevalence (2.5%), no detectable Mf-positive individuals and significantly low antibody prevalence in children (7.9%) (P<0.05). Siufaga, previously believed to be LF-free, recorded >1% CFA prevalence and a high antibody prevalence in children (46.6%). Overall, antibody prevalence in children appeared to reflect the transmission dynamics in the villages and, in Siufaga, identified an area of ongoing transmission. The Filariasis Cellabs Enzyme-Linked Immunosorbent Assay (CELISA), based on recombinant antigen Bm14, to detect antibodies, could potentially be a promising diagnostic tool for inclusion in future surveillance in the South Pacific.
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