Evidence map›Paper›PMID 25928847›Full record

ArticleParasites & vectors2015

Serological evidence of vector and parasite exposure in Southern Ghana: the dynamics of malaria transmission intensity.

Kingsley Badu, Ben Gyan, Maxwell Appawu, Daniel Mensah, Daniel Dodoo, Guiyun Yan, Chris Drakeley, Guofa Zhou, Ellis Owusu-Dabo, Kwadwo Ansah Koram

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. eLife · 2021
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Serology reveals micro-differences inFrontiers in parasitology · 2023
    Article
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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

10 authors at 5 institutions in 3 countries.

Kingsley BaduDepartment of Immunology, Noguchi Memorial Institute for Medical Research, College of Health Science University of Ghana, LG581, , Legon, Accra, Ghana. Kingsbadu@gmail.com.
Ben GyanDepartment of Immunology, Noguchi Memorial Institute for Medical Research, College of Health Science University of Ghana, LG581, , Legon, Accra, Ghana. Bgyan@noguchi.ug.edu.gh.
Maxwell AppawuDepartment of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Science University of Ghana, LG581, , Legon, Accra, Ghana. Mappawu@noguchi.ug.edu.gh.
Daniel MensahDepartment of Immunology, Noguchi Memorial Institute for Medical Research, College of Health Science University of Ghana, LG581, , Legon, Accra, Ghana. Dmensah@noguchi.ug.edu.gh.
Daniel DodooDepartment of Immunology, Noguchi Memorial Institute for Medical Research, College of Health Science University of Ghana, LG581, , Legon, Accra, Ghana. DDodoo@noguchi.ug.edu.gh.
Guiyun YanProgram in Public Health, Room 3038, Hewitt Hall, College of Health Science, University of California, Irvine, CA, 92697-4050, USA. Guiyuny@uci.edu.
Chris DrakeleyLondon School of Hygiene and Tropical Medicine, London, UK. Chris.Drakeley@lshtm.ac.uk.
Guofa ZhouProgram in Public Health, Room 3038, Hewitt Hall, College of Health Science, University of California, Irvine, CA, 92697-4050, USA. Zhoug@uci.edu.
Ellis Owusu-DaboKumasi Centre for Collaborative Research in Tropical Medicine, School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana. Owusudabo@kccr.de.
Kwadwo Ansah KoramDepartment of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Science University of Ghana, LG581, , Legon, Accra, Ghana. KKoram@noguchi.ug.edu.gh.
Noguchi Memorial Institute for Medical Research · GHUniversity of California, Irvine · USUniversity of Ghana · GHKwame Nkrumah University of Science and Technology · GHLondon School of Hygiene & Tropical Medicine · GB

Funding

Ecology of African Highland MalariaR01AI050243 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI YAN, GUIYUN · 2001 to 2018
$8.8M
Research Training in Mosquito Genomics and Bioinformat*D43TW001505 · FIC · UNIVERSITY OF CALIFORNIA-IRVINE · PI Guiyun Yan · 2000 to 2026
$6.0M
FIC NIH HHS D43 TW001505NIAID NIH HHS R01 AI050243
6 · The paper itself

Abstract

backgroundSeroepidemiology provides robust estimates for tracking malaria transmission when intensity is low and useful when there is no baseline entomological data. Serological evidence of exposure to malaria vectors and parasite contribute to our understanding of the risk of pathogen transmission, and facilitates implementation of targeted interventions. Ab to Anopheles gambiae salivary peptide (gSG6-P1) and merozoite surface protein one (MSP-1(19)) reflect human exposure to malaria vectors and parasites. This study estimated malaria transmission dynamics using serological evidence of vector and parasite exposure in southern Ghana.

methodsTotal IgG responses to both antigens in an age stratified cohort (<5, 5-14, >14) were measured from South-eastern Ghana. 295 randomly selected sera were analyzed from archived samples belonging to a cohort study that were followed at 3 consecutive survey months (n = 885); February, May and August 2009. Temporal variations in seroprevalence of both antigens as well as differences between the age-stratified cohorts were determined by χ (2) test with p < 0.05 statistically significant. Non-parametric repeated ANOVA - Friedman's test was used to test differences in antibody levels. Seroprevalence data were fitted to reversible catalytic model to estimate sero-conversion rates.

resultsWhereas parasite prevalence was generally low 2.4%, 2.7% and 2.4% with no apparent trends with season, seroprevalence to both gSG6-P1 and MSP1(19) were high (59%, 50.9%, 52.2%) and 57.6%, 52.3% and 43.6% in respective order from Feb. to August. Repeated measures ANOVA showed differences in median antibody levels across surveys with specific significant differences between February and May but not August by post hoc Dunn's multiple comparison tests for gSG6-P1. For MSP1(19), no differences were observed in antibody levels between February and May but a significant decline was observed from May to August. Seroconversion rates for gSG6-P1 increased by 1.5 folds from February to August and 3 folds for MSP1(19).

conclusionData suggests exposure to infectious bites may be declining whereas mosquito bites remains high. Sustained malaria control efforts and surveillance are needed to drive malaria further down and to prevent catastrophic rebound. Operational factors for scaling up have been discussed.

Indexed as

AdolescentAdultAnimalsAnophelesChildChild, PreschoolGhanaHumansImmunoglobulin GInsect Bites and StingsMalariaMalaria, FalciparumMerozoite Surface Protein 1Salivary Proteins and PeptidesSeroepidemiologic StudiesYoung AdultgSG6-P1 peptide, humanImmunoglobulin GMerozoite Surface Protein 1Salivary Proteins and Peptides

Identifiers

PMID25928847
PMCPMC4418069
OpenAlexW2059605393

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.