ArticlePLoS neglected tropical diseases2019
Epidemiology of capybara-associated Brazilian spotted fever.
Article in PLoS neglected tropical diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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Who cites it
44 citing papers in PubMed, 126 citations in OpenAlex.
- Mapping Potential Risks for the Transmission of Spotted Fever Rickettsiosis after Environmental Changes in an Atlantic Forest Region in Brazil.ACS omega · 2026Article
- Assessment of tick populations associated with capybaras in natural reserves and human-modified environments with or without invasive plants in the state of São Paulo, Brazil.Experimental & applied acarology · 2026Article
- Canine vector-borne diseases: a changing world demands a new preventive strategy from veterinarians.Parasites & vectors · 2026Review
- Amblyomma cajennense Sensu Stricto (Fabricius, 1787) and Amblyomma sculptum (Berlese, 1888) Tick Saliva Elicit Immune-Modulatory Activity in Isolated Murine Macrophages With an Insight Into Proteomic Analysis.Parasite immunology · 2026Article
- Spatial and temporal distribution of Brazilian spotted fever in an endemic area: epidemiological profile of a zoonosis in constant adaptation to anthropogenic actions.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2026Article
- Effects of exposure to Rickettsia bellii on reservoir competence of guinea pigs for Rickettsia rickettsiiMemorias do Instituto Oswaldo Cruz · 2026Article
- Anaplasmataceae circulation in wild mammals and ticks from Goiás state, midwestern Brazil.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2026Article
- High seroprevalence of Rickettsia spp. and molecular detection of Rickettsia amblyommatis in human-biting ticks from the eastern Amazon, Brazil.Parasites & vectors · 2025Article
- Vector competence and transovarial transmission of Rickettsia rickettsii in Rickettsia bellii-infected and -uninfected Amblyomma dubitatum ticks.Experimental & applied acarology · 2025Article
- Immunoprotection Provided by Salivary and Intestinal Protein-Based Antigens Against the Ixodid TickVaccines · 2025Article
- Experimental infection of wild boars (Sus scrofa) with Rickettsia rickettsii and evaluation of the transmission potential to Amblyomma sculptum ticks.Parasites & vectors · 2025Article
- Serological and Molecular Survey of Rickettsial Agents in Wild Boars (Animals : an open access journal from MDPI · 2024Article
- Molecular Identification of Spotted Fever Group Rickettsiae in Ticks in the Republic of Korea.Pathogens (Basel, Switzerland) · 2024Article
- A Mini-Review of Diagnostic Methods for the Antigen and Antibody Detection of Rocky Mountain and Brazilian Spotted Fever.Biomedicines · 2024Review
- Effects ofInternational journal of molecular sciences · 2024Article
- Encapsulation of carvacrol and thymol with yeast cell wall and its repellent activity against Amblyomma sculptum and Rhipicephalus sanguineus (Sensu Lato).Experimental & applied acarology · 2024Article
- Repellent activity of the non-host semiochemical (E)-2-octenal against Amblyomma sculptum and Amblyomma dubitatum ticks under field conditions.Experimental & applied acarology · 2024Article
- Survey of Rickettsia spp. in ticks (Acari: Ixodidae) infesting opossums (Didelphis albiventris) and capybaras (Hydrochoerus hydrochaeris) from an urban park in southeastern Brazil.Experimental & applied acarology · 2024Article
- Molecular screening of tick-borne microorganisms in ticks from rural areas of Panama, with the first record of Ehrlichia minasensis in Rhipicephalus microplus from Central America.Veterinary research communications · 2024Article
- Effect of environmental variables on the abundance of Amblyomma ticks, potential vectors of Rickettsia parkeri in central Brazil.PloS one · 2024Article
Corrections and comments
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Authors and funding
29 authors at 10 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBrazilian spotted fever (BSF), caused by the bacterium Rickettsia rickettsii, has been associated with the transmission by the tick Amblyomma sculptum, and one of its main hosts, the capybara (Hydrochoerus hydrochaeris).
methodsDuring 2015-2019, we captured capybaras and ticks in seven highly anthropic areas of São Paulo state (three endemic and four nonendemic for BSF) and in two natural areas of the Pantanal biome, all with established populations of capybaras.
resultsThe BSF-endemic areas were characterized by much higher tick burdens on both capybaras and in the environment, when compared to the BSF-nonendemic areas. Only two tick species (A. sculptum and Amblyomma dubitatum) were found in the anthropic areas; however, with a great predominance of A. sculptum (≈90% of all ticks) in the endemic areas, in contrast to a slight predominance of A. dubitatum (≈60%) in the nonendemic areas. Tick species richness was higher in the natural areas, where six species were found, albeit with a predominance of A. sculptum (≈95% of all ticks) and environmental tick burdens much lower than in the anthropic areas. The BSF-endemic areas were characterized by overgrowth populations of A. sculptum that were sustained chiefly by capybaras, and decreased populations of A. dubitatum. In contrast, the BSF-nonendemic areas with landscape similar to the endemic areas differed by having lower tick burdens and a slight predominance of A. dubitatum over A.sculptum, both sustained chiefly by capybaras. While multiple medium- to large-sized mammals have been incriminated as important hosts for A. sculptum in the natural areas, the capybara was the only important host for this tick in the anthropic areas.
conclusionsThe uneven distribution of R. rickettsii infection among A. sculptum populations in highly anthropic areas of São Paulo state could be related to the tick population size and its proportion to sympatric A. dubitatum populations.
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