Evidence map›Paper›PMID 28899604›Full record

ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]

Clinical and epidemiological use of nested PCR targeting the repetitive element IS1111 associated with the transposase gene from Coxiella burnetii.

Maria Angélica M M Mares-Guia, Alexandro Guterres, Tatiana Rozental, Michelle Dos Santos Ferreira, Elba R S Lemos

Open access · hybridAbstract readEvaluation Study
In one paragraph

Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]. 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
1.8field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Molecular Detection ofPathogens (Basel, Switzerland) · 2026
    Article
  3. Molecular characterization ofFrontiers in veterinary science · 2026
    Article
  4. Article
  5. Molecular detection ofNew microbes and new infections · 2025
    Article
  6. Multiple spacer sequence typing ofFrontiers in veterinary science · 2024
    Article
  7. Article
  8. Review
  9. High prevalence ofVeterinary world · 2020
    Article
  10. Molecular detection of Coxiella burnetii in horse sera in Iran.Comparative immunology, microbiology and infectious diseases · 2020
    Article
  11. Article
  12. First molecular detection of Coxiella burnetii in Brazilian artisanal cheese: a neglected food safety hazard in ready-to-eat raw-milk product.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
    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

5 authors at 1 institution in 1 country.

Maria Angélica M M Mares-GuiaOswaldo Cruz Institute, Laboratory of Hantavirus and Rickettsioses, Fiocruz, RJ, Brazil.
Alexandro GuterresOswaldo Cruz Institute, Laboratory of Hantavirus and Rickettsioses, Fiocruz, RJ, Brazil.
Tatiana RozentalOswaldo Cruz Institute, Laboratory of Hantavirus and Rickettsioses, Fiocruz, RJ, Brazil.
Michelle Dos Santos FerreiraOswaldo Cruz Institute, Laboratory of Hantavirus and Rickettsioses, Fiocruz, RJ, Brazil.
Elba R S LemosOswaldo Cruz Institute, Laboratory of Hantavirus and Rickettsioses, Fiocruz, RJ, Brazil. Electronic address: elemos@ioc.fiocruz.br.
Fundação Oswaldo Cruz · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Q fever is a worldwide zoonosis caused by Coxiella burnetii-a small obligate intracellular Gram-negative bacterium found in a variety of animals. It is transmitted to humans by inhalation of contaminated aerosols from urine, feces, milk, amniotic fluid, placenta, abortion products, wool, and rarely by ingestion of raw milk from infected animals. Nested PCR can improve the sensitivity and specificity of testing while offering a suitable amplicon size for sequencing. Serial dilutions were performed tenfold to test the limit of detection, and the result was 10× detection of C. burnetti DNA with internal nested PCR primers relative to trans-PCR. Different biological samples were tested and identified only in nested PCR. This demonstrates the efficiency and effectiveness of the primers. Of the 19 samples, which amplify the partial sequence of C. burnetii, 12 were positive by conventional PCR and nested PCR. Seven samples-five spleen tissue samples from rodents and two tick samples-were only positive in nested PCR. With these new internal primers for trans-PCR, we demonstrate that our nested PCR assay for C. burnetii can achieve better results than conventional PCR.

Indexed as

DNA Transposable ElementsBacterial ProteinsCoxiella burnetiiFeverHumansPolymerase Chain ReactionTransposasesBacterial ProteinsDNA Transposable ElementsTransposasesCoxiella burnetiiIS1111Molecular diagnosisNested PCRQ fever

Identifiers

PMID28899604
PMCPMC5790644
OpenAlexW2747388596

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.