ArticleParasites & vectors2021
Wolbachia prevalence in the vector species Culex pipiens and Culex torrentium in a Sindbis virus-endemic region of Sweden.
Article in Parasites & vectors, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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.
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.
Who cites it
16 citing papers in PubMed, 22 citations in OpenAlex.
- Ecotypes,bioRxiv : the preprint server for biology · 2026Article
- Progress in research on mosquito-borne viruses: Understanding infection, transmission, and control.Infectious diseases & immunity · 2026Review
- Detection and genetic diversity of Wolbachia and its associated prophage WO in mosquito populations from Ethiopia.Scientific reports · 2025Article
- Molecular evidence of Wolbachia and Orthoflavivirus infection in field-collected mosquitoes in three provinces of Türkiye.Tropical medicine & international health : TM & IH · 2025Article
- EuropeanInsects · 2024Article
- Lack of abundant core virome inmSystems · 2024Article
- Metatranscriptomic Sequencing of Medically Important Mosquitoes Reveals Extensive Diversity of RNA Viruses and Other Microbial Communities in Western Australia.Pathogens (Basel, Switzerland) · 2024Article
- Microbiota composition of Culex perexiguus mosquitoes during the West Nile virus outbreak in southern Spain.PloS one · 2024Article
- Detection and quantification of naturalFrontiers in cellular and infection microbiology · 2024Article
- Effects of seasonality and developed land cover onFrontiers in microbiology · 2024Article
- Culex modestus: the overlooked mosquito vector.Parasites & vectors · 2023Review
- Belgian Culex pipiens pipiens are competent vectors for West Nile virus while Culex modestus are competent vectors for Usutu virus.PLoS neglected tropical diseases · 2023Article
- OverwinteringOne health (Amsterdam, Netherlands) · 2023Article
- Mosquito-borne viruses causing human disease in Fennoscandia-Past, current, and future perspectives.Frontiers in medicine · 2023Review
- SymbioticFrontiers in microbiology · 2023Review
- NativeFrontiers in microbiology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
backgroundWolbachia pipientis are endosymbiotic bacteria present in a large proportion of terrestrial arthropods. The species is known to sometimes affect the ability of its host to transmit vector-borne pathogens. Central Sweden is endemic for Sindbis virus (SINV), where it is mainly transmitted by the vector species Culex pipiens and Culex torrentium, with the latter established as the main vector. In this study we investigated the Wolbachia prevalence in these two vector species in a region highly endemic for SINV.
methodsCulex mosquitoes were collected using CDC light traps baited with carbon dioxide over 9 years at 50 collection sites across the River Dalälven floodplains in central Sweden. Mosquito genus was determined morphologically, while a molecular method was used for reliable species determination. The presence of Wolbachia was determined through PCR using general primers targeting the wsp gene and sequencing of selected samples.
resultsIn total, 676 Cx. pipiens and 293 Cx. torrentium were tested for Wolbachia. The prevalence of Wolbachia in Cx. pipiens was 97% (95% CI 94.8-97.6%), while only 0.7% (95% CI 0.19-2.45%) in Cx. torrentium. The two Cx. torrentium mosquitoes that were infected with Wolbachia carried different types of the bacteria.
conclusionsThe main vector of SINV in the investigated endemic region, Cx. torrentium, was seldom infected with Wolbachia, while it was highly prevalent in the secondary vector, Cx. pipiens. The presence of Wolbachia could potentially have an impact on the vector competence of these two species. Furthermore, the detection of Wolbachia in Cx. torrentium could indicate horizontal transmission of the endosymbiont between arthropods of different species.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.