ArticleNpj viruses2025
Vector surveillance during a major chikungunya outbreak in northwestern São Paulo state, Brazil.
Article in Npj viruses, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 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
7 citing papers in PubMed.
- Protocol for Detecting and Sequencing Chikungunya Virus from Field-Collected Mosquitoes.Methods in molecular biology (Clifton, N.J.) · 2027Article
- Chikungunya virus: global epidemiology, transmission dynamics, and emerging challenges for public health.Infection · 2026Review
- Chikungunya Virus Mosquito Vectors: A Global Review of Field Surveillance and Laboratory Vector Competence (2020-2026).Insects · 2026Review
- Review
- Epidemiological and genomic features of chikungunya virus disease in travellers returning from Cuba, September 2025 to January 2026: a GeoSentinel analysis.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2026Article
- Review
- Intrahost population dynamics of chikungunya virus in humans and naturally infectedVirus evolution · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
17 authors.
Funding
Abstract
Brazil constitutes a hotspot for arbovirus emergence, posing persistent public health challenges. In São José do Rio Preto (SJdRP), dengue has historically predominated, whereas only 62 chikungunya virus (CHIKV) cases were reported between 2015 and 2023, suggesting cryptic circulation. However, from 2024 onwards, CHIKV notifications began to increase across São Paulo State. Because arboviral febrile illnesses frequently overlap clinically, early detection necessitates robust surveillance systems. To address this, mosquito collections were conducted over 15 months in SJdRP and screened for CHIKV RNA. Positive specimens were further analyzed through virus isolation and whole-genome sequencing. Overall, 5.6% of specimens tested positive, with prevalence rising from December 2023 and peaking in May 2024, coinciding with human cases. Phylogenetic reconstruction indicated multiple introductions, primarily from southeastern Brazil, driving viral establishment. These events likely facilitated transmission within a dense, susceptible vector population, contributing to extensive spread and culminating in a major CHIKV outbreak in northwestern São Paulo.
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.