Evidence map›Paper›PMID 33069260›Full record

ArticleParasites & vectors2020

Molecular detection of Rickettsia in fleas from micromammals in Chile.

Lucila Moreno-Salas, Mario Espinoza-Carniglia, Nicol Lizama-Schmeisser, Luis Gonzalo Torres-Fuentes, María Carolina Silva-de La Fuente, Marcela Lareschi, Daniel González-Acuña

Open access · goldAbstract readComparative Study
In one paragraph

Article in Parasites & vectors, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

7 citing papers in PubMed, 15 citations in OpenAlex.

  1. Ectoparasite-borneParasitology · 2026
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  3. Patterns of Gastrointestinal Helminth Infections inFrontiers in veterinary science · 2022
    Article
  4. Article
  5. Land-use change and rodent-borne diseases: hazards on the shared socioeconomic pathways.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  6. Article
  7. Review
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 at 3 institutions in 2 countries.

Lucila Moreno-SalasUniversidad de Concepción, Facultad de Ciencias Naturales y Oceanográficas, Concepción, Chile. lumoreno@udec.cl.ORCID http://orcid.org/0000-0003-3159-4916
Mario Espinoza-CarnigliaCentro de Estudios Parasitológicos y de Vectores CEPAVE (CONICET CCT-La Plata-UNLP), La Plata, Argentina.ORCID https://orcid.org/0000-0001-6786-3271
Nicol Lizama-SchmeisserUniversidad de Concepción, Facultad de Ciencias Naturales y Oceanográficas, Concepción, Chile.
Luis Gonzalo Torres-FuentesUniversidad Austral de Chile, Facultad de Ciencias, Valdivia, Chile.
María Carolina Silva-de La FuenteUniversidad de Concepción, Facultad de Ciencias Veterinarias, Chillán, Chile.
Marcela LareschiCentro de Estudios Parasitológicos y de Vectores CEPAVE (CONICET CCT-La Plata-UNLP), La Plata, Argentina.
Daniel González-AcuñaUniversidad de Concepción, Facultad de Ciencias Veterinarias, Chillán, Chile.ORCID https://orcid.org/0000-0002-2397-2991
University of Concepción · CLAustral University of Chile · CLConsejo Nacional de Investigaciones Científicas y Técnicas · AR

Funding

Towards eliminating HIV in Uganda by 2030; Preparing Ethical Review Committees to support this agendaG11TW011309 · FIC · INFECTIOUS DISEASES INSTITUTE · PI BYAKIKA-KIBWIKA, PAULINE · 2019 to 2021
$373k
Fondo Nacional de Desarrollo Científico y Tecnológico 11150875Fondo Nacional de Desarrollo Científico y Tecnológico 1130948Fondo Nacional de Desarrollo Científico y Tecnológico 1170972
6 · The paper itself

Abstract

backgroundRickettsial diseases are considered important in public health due to their dispersal capacity determined by the particular characteristics of their reservoirs and/or vectors. Among the latter, fleas play an important role, since the vast majority of species parasitize wild and invasive rodents, so their detection is relevant to be able to monitor potential emerging diseases. The aim of this study was to detect, characterize, and compare Rickettsia spp. from the fleas of micromammals in areas with different human population densities in Chile.

methodsThe presence of Rickettsia spp. was evaluated by standard polymerase chain reaction (PCR) and sequencing in 1315 fleas collected from 1512 micromammals in 29 locations, with different human population densities in Chile. A generalized linear model (GLM) was used to identify the variables that may explain Rickettsia prevalence in fleas.

resultsDNA of Rickettsia spp. was identified in 13.2% (174 of 1315) of fleas tested. Fifteen flea species were found to be Rickettsia-positive. The prevalence of Rickettsia spp. was higher in winter, semi-arid region and natural areas, and the infection levels in fleas varied between species of flea. The prevalence of Rickettsia among flea species ranged between 0-35.1%. Areas of lower human density showed the highest prevalence of Rickettsia. The phylogenetic tree showed two well-differentiated clades with Rickettsia bellii positioned as basal in one clade. The second clade was subdivided into two subclades of species related to Rickettsia of the spotted fever group.

conclusionsTo our knowledge, this is the first report of the occurrence and molecular characterization of Rickettsia spp. in 15 flea species of micromammals in Chile. In this study, fleas were detected carrying Rickettsia DNA with zoonotic potential, mainly in villages and natural areas of Chile. Considering that there are differences in the prevalence of Rickettsia in fleas associated with different factors, more investigations are needed to further understand the ecology of Rickettsia in fleas and their implications for human health.

Indexed as

AnimalsChileEcologyFlea InfestationsHumansPhylogenyRickettsiaRickettsia InfectionsRodentiaSiphonapteraBacteriaFleasMarsupialsPathogenRodentsVectors

Identifiers

PMID33069260
PMCPMC7568392
OpenAlexW3092767503

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.