Hemoparasites in ticks of wild birds of Serra dos Órgãos National Park, state of Rio de Janeiro, Brazil

Pacheco, Agenor Sarraf; Cordeiro, Matheus Dias; Cepeda, Márcio Barizon; Luz, Hermes Ribeiro; Cardozo, Sergian Vianna; Berto, Bruno Pereira; Guterres, Alexandro; Fonseca, Adivaldo Henrique da

doi:10.1590/s1984-29612019017

Cited by 15 publications

(11 citation statements)

References 34 publications

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“…Rickettsia rickettsii and Rickettsia parkeri are causative species of tick-borne spotted fever in Brazil, and these pathogens were found in this country in ticks collected from capybaras in Mato Grosso state (71) and from dogs in Bahia state (72). Rickettsia bacteria have been reported in ticks infesting several wild mammalian species throughout Brazil (73)(74)(75)(76), and in Brazilian wild birds (77,78). Rickettsia parkeri and R. bellii have been found in A. nodosum collected from M. tridactyla and T. tetradactyla in the Southeast and Central-West regions of Brazil (76).…”

Section: Tick-borne Associated Pathogensmentioning

confidence: 95%

Ticks and Associated Pathogens From Rescued Wild Animals in Rainforest Fragments of Northeastern Brazil

et al. 2020

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The Ixodidae family comprises ticks that are hematophagous ectoparasites and are considered vectors of several hemoparasites from the Anaplasmataceae family and the genus Hepatozoon, Babesia, and Rickettsia. These ectoparasites parasitize domestic and wild animals belonging to several vertebrate groups. Ticks are highly adapted to different biomes and thus possess a wide geographical distribution. In the Brazilian state of Bahia, localized in the Northeast region, there are large rainforest fragments. Studies have rarely been carried out on ticks, and their hemoparasites, that parasitize wild animals in this region. Thus, this study aimed to identify the tick species parasitizing wild animals rescued in rainforest fragments of Bahia and investigate the presence of hemoparasites in tick tissues. During a 2-year period, 238 ticks were collected from 41 wild mammalians, reptiles, and amphibians. These ectoparasites were taxonomically classified according to their morphological characteristics. The ticks identified belonged to five different species from the Ixodidae family: Amblyomma varium, Amblyomma rotundatum, Amblyomma nodosum, Ixodes loricatus, and Rhipicephalus sanguineus. For the first time, an A. rotundatum parasitizing the Mesoclemmys tuberculata turtle was described. PCR assays using DNA extracted from salivary glands or midgut of the ticks were performed to detect specific DNA fragments of hemoparasites from the genus Rickettsia, Ehrlichia, Babesia, Hepatozoon, and from the Anaplasmataceae family. The results showed positive detection of the Rickettsia genus (7.9%), Anaplasmataceae family (15.8%), and Hepatozoon genus (15.8%). Specific DNA from the Ehrlichia and Babesia genera were not detected in these samples. Specific DNA from members of the Anaplasmataceae family was detected in A. varium for the first time. The present Fonseca et al. Ticks in Wild Animals work showed that amphibians, reptiles, and mammals from Bahia's Atlantic Forest areparasitized by different tick species, and that these ectoparasites present pathogens in their tissues that impact both humans and animals due to their zoonotic potential.

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Section: Tick-borne Associated Pathogensmentioning

confidence: 95%

Ticks and Associated Pathogens From Rescued Wild Animals in Rainforest Fragments of Northeastern Brazil

et al. 2020

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“…The description of "Candidatus Borrelia mahuryensis" suggests that members of this Borrelia group have a broad spectrum of hosts, which may also include a variety of passerine birds and mammals as natural hosts. There are also new strains of unidentified species of Borrelia, apparently related to this group of Borrelia and have been identified in ticks, living in Brazil [265], Argentina [266] and Mexico [267].…”

Section: Borrelia Echidna-reptile Groupmentioning

confidence: 96%

“…Borrelia mahuryensis persists in French Guiana through its circulation in at least two species of ticks: Amblyomma longirostre and Amblyomma geayi, collected from passerine birds, which can be suggested as natural hosts [56]. Isolates of closely related strains of Borrelia mahuryensis have also recently been detected in Brazil, from A. longirostre ticks collected from birds [265] and in Texas from A. maculatum ticks [275]. Ticks A. longirostre, A. geayi and A. maculatum are often infected with this Borrelia, which can be transmitted transovarially to their larvae.…”

Section: Borrelia Mahuryensismentioning

confidence: 99%

Borreliae Part 1: Borrelia Lyme Group and Echidna-Reptile Group

Trevisan

Cinco

Trevisini

et al. 2021

Biology

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Borreliae are divided into three groups, namely the Lyme group (LG), the Echidna-Reptile group (REPG) and the Relapsing Fever group (RFG). Currently, only Borrelia of the Lyme and RF groups (not all) cause infection in humans. Borreliae of the Echidna-Reptile group represent a new monophyletic group of spirochaetes, which infect amphibians and reptiles. In addition to a general description of the phylum Spirochaetales, including a brief historical digression on spirochaetosis, in the present review Borreliae of Lyme and Echidna-Reptile groups are described, discussing the ecology with vectors and hosts as well as microbiological features and molecular characterization. Furthermore, differences between LG and RFG are discussed with respect to the clinical manifestations. In humans, LG Borreliae are organotropic and cause erythema migrans in the early phase of the disease, while RFG Borreliae give high spirochaetemia with fever, without the development of erythema migrans. With respect of LG Borreliae, recently Borrelia mayonii, with intermediate characteristics between LG and RFG, has been identified. As part of the LG, it gives erythema migrans but also high spirochaetemia with fever. Hard ticks are vectors for both LG and REPG groups, but in LG they are mostly Ixodes sp. ticks, while in REPG vectors do not belong to that genus.

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“…In addition to Rickettsia-ticks-birds a nymph of Amblyomma longirostre collected on birds in Brazil was positive for Borrelia sp. (Pacheco et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Diversity of ticks and detection of Rickettsia amblyommatis infecting ticks on wild birds in anthropogenic landscapes in Bahia state, northeast Brazil

et al. 2021

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Birds are important hosts in the maintenance and spread of ticks worldwide, including several species of Amblyomma which harbor rickettsial agents as members of the spotted fever group (SFG). The current survey shows the diversity of tick and rickettsial agents infecting ticks on wild birds from an Atlantic rainforest in the state of Bahia, Brazil. A total of 365 birds were captured, representing two orders, 22 families and 51 species, among which 68 specimens (18.6%) were parasitized. Overall, 132 immature ticks (81 larvae and 51 nymphs) were identified to species level, representing six recognized species of the genus Amblyomma: Amblyomma longirostre (n = 45), Amblyomma nodosum (n = 40), Amblyomma varium (n = 5), Amblyomma parkeri (n = 2), Amblyomma coelebs (n = 3) and Amblyomma calcaratum (n = 1). Amplification by PCR and sequencing of rickettsial genes (gltA and ompA), detected the presence of Rickettsia DNA in 12 (9.1%) of the ticks. Rickettsia amblyommatis was the only agent detected in nine larvae and two nymphs of A. longirostre and one nymph of A. varium with 99-100% similarity.

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Hemoparasites in ticks of wild birds of Serra dos Órgãos National Park, state of Rio de Janeiro, Brazil

Cited by 15 publications

References 34 publications

Ticks and Associated Pathogens From Rescued Wild Animals in Rainforest Fragments of Northeastern Brazil

Ticks and Associated Pathogens From Rescued Wild Animals in Rainforest Fragments of Northeastern Brazil

Borreliae Part 1: Borrelia Lyme Group and Echidna-Reptile Group

Diversity of ticks and detection of Rickettsia amblyommatis infecting ticks on wild birds in anthropogenic landscapes in Bahia state, northeast Brazil

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