Evidence map›Paper›PMID 18936975›Full record

ArticleParasitology research2009

A longitudinal study on the transmission dynamics of human Leishmania (Leishmania) infantum chagasi infection in Amazonian Brazil, with special reference to its prevalence and incidence.

Fernando T Silveira, Ralph Lainson, Elza A Pereira, Adelson A A de Souza, Marliane B Campos, Eugênia J Chagas, Claudia M C Gomes, Márcia D Laurenti, Carlos E P Corbett

Open access · greenAbstract read
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In one paragraph

Article in Parasitology research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 29 citations in OpenAlex.

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  6. Clinical and Immunological Features of HumanPathogens (Basel, Switzerland) · 2020
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  9. Risk Profiles for Leishmania infantum Infection in Brazil.The American journal of tropical medicine and hygiene · 2016
    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

9 authors at 3 institutions in 2 countries.

Fernando T SilveiraParasitology Department, Evandro Chagas Institute (Surveillance Secretary of Health, Ministry of Health), Av. Almirante Barroso, 492, 66090-000, Belém, Pará State, Brazil. silveiraft@lim50.fm.usp.br
Ralph Lainson
Elza A Pereira
Adelson A A de Souza
Marliane B Campos
Eugênia J Chagas
Claudia M C Gomes
Márcia D Laurenti
Carlos E P Corbett
Ministério da Saúde · BRUniversidade de São Paulo · BROffice of the Secretary of Health and Human Services · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This was a longitudinal study carried out during a period over 2 years with a cohort of 946 individuals of both sexes, aged 1 year and older, from an endemic area of American visceral leishmaniasis (AVL) in Pará State, Brazil. The object was to analyze the transmission dynamics of human Leishmania (Leishmania) infantum chagasi infection based principally on the prevalence and incidence. For diagnosis of the infection, the indirect fluorescent antibody test (IFAT) and leishmanin skin test (LST) were performed with amastigote and promastigote antigens of the parasite, respectively. The prevalence by LST (11.2%) was higher (p < 0.0001) than that (3.4%) by IFAT, and the combined prevalence by both tests was 12.6%. The incidences by LST were also higher (p < 0.05) than those by IFAT at 6 (4.7% x 0.6%), 12 (4.7% x 2.7%), and 24 months (2.9% x 0.3%). Moreover, there were no differences (p > 0.05) between the combined incidences by both tests on the same point surveys, 5.2%, 6.3%, and 3.6%. During the study, 12 infected persons showed high IFAT IgG titers with no LST reactions: five children and two adults developed AVL (2,560-10,120), and two children and three adults developed subclinical oligosymptomatic infection (1280-2560). The combined tests diagnosed a total of 231 cases of infection leading to an accumulated prevalence of 24.4%.

Indexed as

AdolescentAdultAgedAged, 80 and overAnimalsAntibodies, ProtozoanAntigens, ProtozoanBrazilChildChild, PreschoolFemaleFluorescent Antibody Technique, IndirectHumansIncidenceInfantLeishmania infantumAntibodies, ProtozoanAntigens, Protozoan

Identifiers

PMID18936975
OpenAlexW1968588301

What OpenQuestion holds

Textmetadata
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.