Evidence map›Paper›PMID 36939014›Full record

ArticleTransactions of the Royal Society of Tropical Medicine and Hygiene2023

Predisposition to soil-transmitted helminth reinfection after four rounds of mass drug administration: results from a longitudinal cohort in the Geshiyaro project, a transmission elimination feasibility study in the Wolaita zone of southern Ethiopia.

Santiago Rayment Gomez, Rosie Maddren, Ewnetu Firdawek Liyew, Melkie Chernet, Ufaysa Anjulo, Adugna Tamiru, Birhan Mengitsu, Kathryn Forbes, Benjamin Collyer, Mihretab Salasibew and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Transactions of the Royal Society of Tropical Medicine and Hygiene, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
3.4field-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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Predisposition to Ascaris lumbricoides reinfection in the Geshiyaro project in southern Ethiopia.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2026
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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 4 institutions in 2 countries.

Santiago Rayment GomezLondon Centre for Neglected Tropical Disease Research, Department of Infectious Disease Epidemiology, Faculty of Medicine, St Marys Campus, Imperial College London, London W2 1NY, UK.ORCID 0000-0001-7447-9091
Rosie MaddrenLondon Centre for Neglected Tropical Disease Research, Department of Infectious Disease Epidemiology, Faculty of Medicine, St Marys Campus, Imperial College London, London W2 1NY, UK.
Ewnetu Firdawek LiyewBacterial, Parasitic and Zoonotic Disease Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ayat Zone 8, Ethiopia.
Melkie ChernetBacterial, Parasitic and Zoonotic Disease Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ayat Zone 8, Ethiopia.
Ufaysa AnjuloDisease Prevention and Health Promotion Core Process, Ministry of Health, Wolaita, Ethiopia.
Adugna TamiruDisease Prevention and Health Promotion Core Process, Ministry of Health, Wolaita, Ethiopia.
Birhan MengitsuLondon Centre for Neglected Tropical Disease Research, Department of Infectious Disease Epidemiology, Faculty of Medicine, St Marys Campus, Imperial College London, London W2 1NY, UK.
Kathryn ForbesLondon Centre for Neglected Tropical Disease Research, Department of Infectious Disease Epidemiology, Faculty of Medicine, St Marys Campus, Imperial College London, London W2 1NY, UK.
Benjamin CollyerLondon Centre for Neglected Tropical Disease Research, Department of Infectious Disease Epidemiology, Faculty of Medicine, St Marys Campus, Imperial College London, London W2 1NY, UK.
Mihretab SalasibewChildren's Investment fund Foundation, London W1S 2FT, UK.
Roy AndersonLondon Centre for Neglected Tropical Disease Research, Department of Infectious Disease Epidemiology, Faculty of Medicine, St Marys Campus, Imperial College London, London W2 1NY, UK.
London Centre for Neglected Tropical Disease Research · GBEthiopian Public Health Institute · ETFederal Ministry of Health · ETChildren's Investment Fund Foundation · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCurrent WHO strategies for reaching soil-transmitted helminths (STH) elimination as a public health problem excludes treating certain adult populations in endemic areas, creating infection reservoirs that drive 'bounce back' of STH infection to pretreatment levels post-mass drug administration (MDA). Predisposition is a widespread, but poorly understood phenomena among helminth infections where individuals are predisposed to reinfection after repeated treatments.

methodsThis analysis uses Geshiyaro project data, an STH control programme exploring transmission interruption by community-wide MDA and enhanced water, sanitation and hygiene during 2019-2023. Parasitological survey data from longitudinal cohorts are analysed using Kendall's Tau-b rank correlation to assess the evidence for predisposition to light or heavy infection between four consecutive rounds of MDA.

resultsCorrelation analyses revealed the strongest evidence for predisposition to heavy or light Ascaris lumbricoides infection was between survey 1 and 2 (Tau-b 0.29; p<0.001). Overall patterns were not observed for Trichuris trichiura or hookworm infections, however, some significant and notable correlations were recorded for some stratifications and time points.

conclusionsEvidence for predisposition in endemic settings in southern Ethiopia with low STH prevalence suggests that more targeted approaches to MDA in those predisposed to infection may be a sensible control strategy if cheap, point of care diagnostics are available.

Indexed as

HelminthiasisHelminthsAdultAnimalsAscaris lumbricoidesDisease SusceptibilityEthiopiaFeasibility StudiesFecesHumansMass Drug AdministrationPrevalenceReinfectionSoilSoilEthiopiamass drug administrationpredispositionreinfectionsoil-transmitted helminths

Identifiers

PMID36939014
PMCPMC10318869
OpenAlexW4327896603

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.