Evidence map›Paper›PMID 36006295›Full record

ArticleTropical medicine and infectious disease2022

Evaluating Molecular Xenomonitoring as a Tool for Lymphatic Filariasis Surveillance in Samoa, 2018-2019.

Brady McPherson, Helen J Mayfield, Angus McLure, Katherine Gass, Take Naseri, Robert Thomsen, Steven A Williams, Nils Pilotte, Therese Kearns, Patricia M Graves and 1 more

Open access · goldAbstract read
In one paragraph

Article in Tropical medicine and infectious disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.

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  8. Recurrence of microfilaraemia after triple-drug therapy for lymphatic filariasis in Samoa: Recrudescence or reinfection?International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 8 institutions in 3 countries.

Brady McPhersonAustralian Defence Force Malaria and Infectious Disease Institute, Enoggera 4051, Australia.
Helen J MayfieldSchool of Public Health, Faculty of Medicine, University of Queensland, Brisbane 4006, Australia.ORCID 0000-0003-3462-4324
Angus McLureResearch School of Population Health, Australian National University, Canberra 2601, Australia.
Katherine GassTask Force for Global Health, Decatur, GA 30030, USA.
Take NaseriSamoa Ministry of Health, Apia WS 1330, Samoa.
Robert ThomsenSamoa Ministry of Health, Apia WS 1330, Samoa.
Steven A WilliamsDepartment of Biological Sciences, Smith College, Northampton, MA 01063, USA.
Nils PilotteDepartment of Biological Sciences, Quinnipiac University, Hamden, CT 06518, USA.ORCID 0000-0002-8447-7425
Therese KearnsMenzies School of Health Research, Brisbane 4000, Australia.ORCID 0000-0003-0862-7572
Patricia M GravesCollege of Public Health, Medical and Veterinary Sciences, James Cook University, Cairns 4811, Australia.ORCID 0000-0002-5215-3901
Colleen L LauSchool of Public Health, Faculty of Medicine, University of Queensland, Brisbane 4006, Australia.ORCID 0000-0001-8288-4169
National University of Samoa · WSThe University of Queensland · AUAustralian National University · AUJames Cook University · AUMenzies School of Health Research · AUQuinnipiac University · USSmith College · USThe Task Force for Global Health · US

Funding

The Task Force for Global Health OPP1053230
6 · The paper itself

Abstract

Molecular xenomonitoring (MX), the detection of filarial DNA in mosquitoes using molecular methods (PCR), is a potentially useful surveillance strategy for lymphatic filariasis (LF) elimination programs. Delay in filarial antigen (Ag) clearance post-treatment is a limitation of using human surveys to provide an early indicator of the impact of mass drug administration (MDA), and MX may be more useful in this setting. We compared prevalence of infected mosquitoes pre- and post-MDA (2018 and 2019) in 35 primary sampling units (PSUs) in Samoa, and investigated associations between the presence of PCR-positive mosquitoes and Ag-positive humans. We observed a statistically significant decline in estimated mosquito infection prevalence post-MDA at the national level (from 0.9% to 0.3%, OR 0.4) but no change in human Ag prevalence during this time. Ag prevalence in 2019 was higher in randomly selected PSUs where PCR-positive pools were detected (1.4% in ages 5-9; 4.8% in ages ≥10), compared to those where PCR-positive pools were not detected (0.2% in ages 5-9; 3.2% in ages ≥10). Our study provides promising evidence for MX as a complement to human surveys in post-MDA surveillance.

Indexed as

elephantiasisentomologymolecular xenomonitoringneglected tropical diseasesvector-borne disease

Identifiers

PMID36006295
PMCPMC9414188
OpenAlexW4293105310

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.