Evidence map›Paper›PMID 22035877›Full record

ArticleThe Journal of allergy and clinical immunology2012

The effect of single and multiple infections on atopy and wheezing in children.

Neuza Maria Alcantara-Neves, Rafael Valente Veiga, Vitor Camilo Cavalcante Dattoli, Rosimeire Leovigildo Fiaccone, Renata Esquivel, Álvaro Augusto Cruz, Philip John Cooper, Laura Cunha Rodrigues, Maurício Lima Barreto

Open access · greenAbstract read
In one paragraph

Article in The Journal of allergy and clinical immunology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 4 pooled it
5.9field-weighted citation impact, top 3% 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

44 citing papers in PubMed, 4 syntheses or guidelines pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Review
  6. Frontiers in immunology · 2025
    Article
  7. Review
  8. Clinical & translational immunology · 2024
    Review
  9. Review
  10. Article
  11. Review
  12. Frontiers in cellular and infection microbiology · 2022
    Review
  13. Heterogeneous associations of polyomaviruses and herpesviruses with allergy-related phenotypes in childhood.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2021
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Age at cytomegalovirus, Epstein Barr virus and varicella zoster virus infection and risk of atopy: The Born in Bradford cohort, UK.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2019
    Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 3 countries.

Neuza Maria Alcantara-NevesDepartamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil. neuzalcantara@gmail.com
Rafael Valente Veiga
Vitor Camilo Cavalcante Dattoli
Rosimeire Leovigildo Fiaccone
Renata Esquivel
Álvaro Augusto Cruz
Philip John Cooper
Laura Cunha Rodrigues
Maurício Lima Barreto
Universidade Federal da Bahia · BRInstituto de Saúde · BRLondon School of Hygiene & Tropical Medicine · GBUniversidad San Francisco de Quito · EC

Funding

Wellcome Trust 072405Wellcome Trust 072405/Z/03/Z
6 · The paper itself

Abstract

backgroundThe current epidemic of asthma and atopy has been explained by alterations in immune responses related to reduction in childhood infections. However, the findings of epidemiologic studies investigating the association between infection with atopy and asthma have been inconsistent.

objectiveWe sought to investigate the effect of single or multiple infections (pathogen burden) on atopy and wheeze in urban children from Latin America.

methodsSpecific IgE against aeroallergens (sIgE) and skin prick test (SPT) reactivity for the most common local allergens were measured in 1128 children aged 4 to 11 years. Data on wheezing and potential confounders were collected by questionnaire. Infections by 8 pathogens were assessed by using serology and stool examination. Associations of wheeze and atopic outcomes with single and multiple infections were analyzed by means of logistic regression.

resultsNegative results for Toxoplasma gondii were associated with a higher prevalence of sIgE (≥0.70 kU/L), whereas negative results for Ascaris lumbricoides, T gondii, herpes simplex virus, and EBV were associated with a higher prevalence of SPT reactivity. Children with 3 or fewer infection markers had a higher prevalence of sIgE and SPT reactivity compared with those with 4 or more infection markers. However, isolated infections or pathogen burden were not associated with the prevalence of atopic or nonatopic wheeze.

conclusionThe findings provide support for the idea that the hygiene hypothesis is operating in an urban Latin American context, but its expression is thus far restricted to the atopic status of patients and not the perceived asthma symptoms.

Indexed as

AllergensBrazilChildChild, PreschoolCohort StudiesCross-Sectional StudiesFemaleHumansHygiene HypothesisHypersensitivity, ImmediateImmunoglobulin EInfectionsMaleRespiratory SoundsSkin TestsAllergensImmunoglobulin E

Identifiers

PMID22035877
PMCPMC5015705
OpenAlexW1984308826

What OpenQuestion holds

Textmetadata
LicenceTDM
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.