Carrapatos do gênero amblyomma (acari: ixodidae) e suas relações com os hospedeiros em área endêmica para febre maculosa no Estado de São Paulo

Pérez, Carlos A.; Almeida, Álvaro Fernando de; Almeida, A.T.S.; Carvalho, Victor Hugo Barbosa de; Balestrin, Daniele do Carmo; Guimarães, Murilo Saraiva; Costa, J.; Ramos, Leonardo Adriano; Arruda-Santos, Ana Dulce; Máximo-Espindola, C.; Barros-Battesti, Darci Moraes

doi:10.1590/s1984-29612008000400008

Cited by 43 publications

(46 citation statements)

References 15 publications

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“…The species with the second greatest number of infested individuals was T. amaurochalinus, which some authors have reported in association with ticks (ARZUA et al, 2005;PEREZ et al, 2008). Larval and nymph parasitism in Turdus was reported in the states of Rio de Janeiro (STORNI et al, 2005) and Paraná (ARZUA, 2007).…”

Section: Discussionmentioning

confidence: 99%

Ticks on birds caught on the campus of the Federal Rural University of Rio de Janeiro, Brazil

Santolin

Luz

Alchorne

et al. 2012

Rev. Bras. Parasitol. Vet.

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The prevalence of parasitic infections, particularly those caused by ectoparasites, may influence the biology and ecology of wild birds. The aim of this study was to investigate occurrences and identify the species of ticks collected from wild birds caught on the campus of the Federal Rural University of Rio de Janeiro. The birds were caught using mist nets between October 2009 and December 2010. In total, 223 birds were caught, represented by 53 species and 19 families in nine orders. Nineteen birds (n = 7 species) were parasitized by immature ticks (prevalence of 8.5%). Forty-four ticks were collected, of which 23 were nymphs and 21 were larvae. There were associations between parasitism by ticks and non-Passeriformes birds, and between parasitism and ground-dwelling birds, which was possibly due to the presence (or inclusion among the captured birds) of Vanellus chilensis (Charadriiformes: Charadriidae). All the nymphs collected were identified as Amblyomma cajennense. In general terms, we must emphasize that wild birds in the study area may play the role of dispersers for the immature stages of A. cajennense, albeit non-preferentially.

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Section: Discussionmentioning

confidence: 99%

Ticks on birds caught on the campus of the Federal Rural University of Rio de Janeiro, Brazil

Santolin

Luz

Alchorne

et al. 2012

Rev. Bras. Parasitol. Vet.

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“…These mammals have presented larger population densities in anthropic environments than in natural ones. They move freely through large extensions of the riparian zones of the bay, which are often degraded, and invade inhabited spaces, thus intensifying the contact between ticks and human beings because they are highly infested by these parasites 22,23 .…”

Section: Introductionmentioning

confidence: 99%

Urbanization of Brazilian spotted fever in a municipality of the southeastern region: epidemiology and spatial distribution

Nasser

Lana²,

Silva³

et al. 2015

Rev. bras. epidemiol.

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Introduction: Brazilian spotted fever is an emerging zoonosis notified mainly in the Southeast of Brazil, especially due to its high level of lethality. Objective: To analyze the epidemiological and spatial pattern of the disease in the municipality of Valinhos (106,793 inhabitants), São Paulo, Southeastern region of Brazil, in the period between 2001 and 2012. Methods: All laboratory-confirmed cases with likely site of infection in the city (n = 49) notified in the Brazilian Case Registry Database were studied. Sites were geocoded using the cartographic base of the city and Google Earth (geographic coordinates) with correction according to the Brazilian Geodetic System. We used the Kernel estimator to analyze the density of the cases on the map. Land cover and distance to basins of all cases were analyzed. Information about tick species and primary hosts were obtained from reports of the Superintendence of Control of Endemic Diseases. Results: Seasonality of the disease was observed with the highest incidence from June to November, and in 2005 and 2011. The most affected groups were men (79.6%) aged 20-49 years old (49%). Lethality was found to be 42.9%. Maps showed the progressive registration of cases in the urban area. Capybaras were reported as the main primary host, and Amblyomma cajennense was identified in probable sites of infection during field investigation. The likely sites of infection were mostly located near basins, dirty pastures, and bordering woods. Conclusions: The transmission pattern of Brazilian spotted fever in Valinhos is similar to that in other cities in the region, where capybara is the main primary host and an amplifier of R. rickettsii. Over the years, a higher occurrence of cases has been identified in the urban area of the city.

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“…Some authors consider this diversity of species as a result of the contact of dogs with different ecosystems, including the sharing of their environment with wild life and, consequently, acquiring mixed infestations (SZABÓ et al, 2001;PEREZ et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

First occurrence of Amblyomma ovale in the State of Rio Grande do Norte, Brazil

Ferreira

Bezerra

Carvalho

et al. 2013

Rev. Bras. Parasitol. Vet.

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This study aims to report the occurrence of parasitism by Amblyomma ovale (Koch, 1844) in dogs in the municipality of Apodi, Rio Grande do Norte, Brazil. Specimens were identified as being one female and two males of A. ovale, besides; the animal was infested by five females of Rhipicephalus (Boophilus) microplus and seven females and three males of R. sanguineus. The finding of A. ovale confirms results in the literature that these ticks, reported in several species of wild carnivores, can also infect dogs in Brazil. The distribution of this tick species in several Brazilian states has already been confirmed, but this is the first report in the State of Rio Grande do Norte. This finding highlights the risk of the carrying of emerging and re-emerging pathogens to peridomestic hosts are as, either because of the frequency of these ticks in wild environments or the presence of infected wild animals near peridomestic environments, exposing domestic dogs to parasitism by A. ovale ticks and, therefore, to agents potentially carried by this ectoparasite.Keywords: Amblyomma, tick, parasitism. ResumoO presente estudo objetiva comunicar a ocorrência do parasitismo por Amblyomma ovale (Koch, 1844) em cão, no município de Apodi, Rio Grande do Norte, Brasil. Os exemplares foram identificados como sendo uma fêmea e dois machos de A. ovale, além destes, o animal estava parasitado por cinco fêmeas de Rhipicephalus (Boophilus) microplus, sete fêmeas e três machos de R. sanguineus. O encontro de A. ovale confirma os resultados da literatura de que esses carrapatos, relatados em várias espécies de carnívoros silvestres, também podem infestar cães no Brasil. Este carrapato tem sua distribuição confirmada em vários estados brasileiros, sendo este o primeiro relato no Estado do Rio Grande do Norte. Este achado alerta para o risco do carreamento de patógenos emergentes e re-emergentes para regiões peridomiciliares, seja devido a frequência destes carrapatos em ambientes silvestres ou da presença de animais silvestres parasitados próximos a ambientes peridomiciliares, expondo cães domésticos ao parasitismo por carrapatos A. ovale e, consequentemente, a agentes potencialmente veiculados por este ectoparasito.Palavras-chave: Amblyomma, carrapato, parasitismo.

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Carrapatos do gênero amblyomma (acari: ixodidae) e suas relações com os hospedeiros em área endêmica para febre maculosa no Estado de São Paulo

Cited by 43 publications

References 15 publications

Ticks on birds caught on the campus of the Federal Rural University of Rio de Janeiro, Brazil

Ticks on birds caught on the campus of the Federal Rural University of Rio de Janeiro, Brazil

Urbanization of Brazilian spotted fever in a municipality of the southeastern region: epidemiology and spatial distribution

First occurrence of Amblyomma ovale in the State of Rio Grande do Norte, Brazil

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