Evidence map›Paper›PMID 39208344›Full record

SynthesisPloS one2024

Anti-Toxoplasma gondii IgG seroprevalence in the general population in Iran: A systematic review and meta-analysis, 2000-2023.

Faezeh Hamidi, Ali Rostami, Seyed Abdollah Hosseini, Rafael Calero-Bernal, Jafar Hajavi, Reza Ahmadi, Hossein Pazoki

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–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

12 citing papers in PubMed.

  1. Article
  2. Seroprevalence and Genotype Distribution ofHealth science reports · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Estimating the national seroprevalence ofEpidemiology and infection · 2025
    Article
  9. Article
  10. Pulmonary toxoplasmosis in a multiple myeloma patient: A Case report and literature review.International journal of molecular and cellular medicine · 2025
    Article
  11. Article
  12. Seroprevalence and Risk Factors forIranian journal of parasitology
    Article
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

7 authors.

Faezeh HamidiFaculty of Medical Sciences, Department of Laboratory Sciences and Microbiology, Tabriz Medical Sciences, Islamic Azad University, Tabriz, Iran.
Ali RostamiHealth Research Institute, Infectious Diseases and Tropical Medicine Research Centre, Babol University of Medical Sciences, Babol, Iran.
Seyed Abdollah HosseiniCommunicable Disease Institute, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran.
Rafael Calero-BernalVeterinary Faculty, Animal Health Department, SALUVET, Complutense University of Madrid, Madrid, Spain.ORCID 0000-0003-2323-0135
Jafar HajaviFaculty of Medicine, Department of Medical Microbiology, Infectious Diseases Research Center, Gonabad University of Medical Science, Gonabad, Iran.
Reza AhmadiFaculty of Medicine, Department of Medical Microbiology, Infectious Diseases Research Center, Gonabad University of Medical Science, Gonabad, Iran.
Hossein PazokiFaculty of Medicine, Department of Medical Microbiology, Infectious Diseases Research Center, Gonabad University of Medical Science, Gonabad, Iran.ORCID 0000-0003-0459-9287

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Toxoplasmosis ranks among the most prevalent parasitic diseases globally. It seems that chronic toxoplasmosis is associated with several neuropsychiatric and other harmful effects in infected people, therefore, there is a need to investigate the prevalence of toxoplasmosis across various world regions. In this study, we conducted a meticulous meta-analysis to estimate the seroprevalence of anti-Toxoplasma gondii IgG antibodies within the general population in Iran (GPI). International and national scientific databases for studies published between January 1, 2000, and September 30, 2023, were searched. Observational studies reporting anti-T. gondii IgG seroprevalence in the GPI was selected/included. The data were synthesized using a random-effects model to calculate with a 95% confidence interval (95% CI) the national and regional anti-T. gondii IgG seroprevalence rates in Iran. Additionally, subgroup analyses were conducted to investigate the frequency of exposition to T. gondii in different socio-demographic, climatic, and geographical scenarios. From 18661 identified studies, 327 were included in the present meta-analysis, encompassing 122,882 individuals across the 31 Iranian provinces. The pooled nationwide anti-T. gondii IgG seroprevalence among the GPI was determined to be 32.9% (95% CI: 30.9-35.1%). The highest anti-T. gondii IgG seroprevalence was observed in Mazandaran province (North of Iran) (61%), whereas the lowest was in Semnan province (12.5%).Anti-T. gondii IgG seroprevalence demonstrated a higher occurrence in provinces characterized by moderate temperatures of 16-21°C, high relative humidity, and annual precipitation. Additionally, a higher anti-T. gondii IgG seroprevalence was identified among individuals with a habit of consumption of undercooked meat, raw fruits or vegetables, and untreated water. Moreover, those reporting direct contact with cats, possessing a lower level of education, residing in rural areas, being engaged in farming occupations, or playing the role of housewives exhibited higher anti-T. gondii IgG seroprevalence figures.The anti-T. gondii IgG seroprevalence within GPI closely aligns with the estimated worldwide average exposition rates. This underscores the imperative for public health policymakers to prioritize educational efforts regarding toxoplasmosis transmission pathways and its link to harmful effects.

Indexed as

Antibodies, ProtozoanImmunoglobulin GToxoplasmaToxoplasmosisHumansIranSeroepidemiologic StudiesAntibodies, ProtozoanImmunoglobulin G

Identifiers

PMID39208344
PMCPMC11361691

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Registered trials

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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.