Evidence map›Paper›PMID 26174621›Full record

ArticleParasites & vectors2015

Can human schistosomiasis mansoni control be sustained in high-risk transmission foci in Egypt?

Hala Elmorshedy, Robert Bergquist, Nadia Emam Abou El-Ela, Safaa Mohamed Eassa, Elham Elsayed Elsakka, Rashida Barakat

Abstract 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 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Article
  6. A study on positive school children as indicators of schistosomiasis status in their families.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2021
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  15. A high-intensity cluster ofTropical medicine and health · 2019
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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

6 authors.

Hala ElmorshedyDepartment of Tropical Health, High Institute of Public Health, Alexandria University, Alexandria, Egypt. elmorshedyh@hotmail.com.
Robert BergquistIngerod, Brastad, Sweden & University of Basel, Basel, Switzerland. robert.bergquist@outlook.com.
Nadia Emam Abou El-ElaDepartment of Tropical Health, High Institute of Public Health, Alexandria University, Alexandria, Egypt. nadia_emam2004@yahoo.com.
Safaa Mohamed EassaDepartment of Tropical Health, High Institute of Public Health, Alexandria University, Alexandria, Egypt. safaamohamed46@yahoo.com.
Elham Elsayed ElsakkaDepartment of Pediatric, Faculty of Medicine, Alexandria University, 165 Alhorreya Avenue, Alexandria, Egypt. dr.elhamelsakka@yahoo.com.
Rashida BarakatDepartment of Tropical Health, High Institute of Public Health, Alexandria University, Alexandria, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundControl of human schistosomiasis remains a longstanding issue on the agenda of the Egyptian Ministry of Health and Population (MOHP). Substantial impact on morbidity and prevalence of S. mansoni was widely reported after the National Schistosomiasis Control Program (NSCP) extended selective treatment with praziquantel (PZQ) to the Nile Delta in 1992 and upgrading this approach to mass drug administration (MDA) in 1997. Disease elimination, however, eludes NSCP as the micro-level includes many high-risk foci that sustain transmission, which has not been subjected to investigation.

methodsThe study included five high-risk Nile Delta villages situated in the Kafr El-Sheikh Governorate. The total sample size amounted to 2382 individuals of both sexes and all ages. Diagnosis was based on four Kato-Katz slides from two consecutive stool samples. Data were investigated using SPSS, comparing proportions with the Chi square test and means with the Student t test, while strength of the associations were subjected to Odds Ratio (OR) analysis.

resultsThe overall prevalence of schistosomiasis in the study area was found to be 29%, while the mean geometric mean egg count (GMEC) was low (66.78 ± 4.4) indicating low intensity of infection. The mean village prevalence rates ranged from 16.5% to 49.5% and the GMECs from 35.2 to 86.2 eggs per gram (EPG) of stool. The difference of prevalence between villages was statistically significant at P < 0.05, and the prevalence was significantly higher among males than among females, P < 0.05, OR =1.4 and 95% CI (1.16-1.60). Infection peaked in the next youngest age group (5- ≤ 10 years of age) at an average prevalence of 50.8% with the GMEC reaching 209 EPG of stool in the village with the highest prevalence. The average prevalence and GMEC among children <5 years were 20.6% and 92.7 EPG, respectively.

conclusionTransmission of S mansoni in high-risk areas in the Nile Delta remains uninterrupted calling for improved, more comprehensive control strategies. Further investigations are needed to find out whether these results are due to inefficacy of PZQ, surviving immature worms or drug resistance.

Indexed as

AdolescentAdultAnthelminticsChildChild, PreschoolEgyptFecesFemaleHumansMaleOdds RatioParasite Egg CountPraziquantelPrevalenceSchistosomiasis mansoniYoung AdultAnthelminticsPraziquantel

Identifiers

PMID26174621
PMCPMC4502643

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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.