Tick-Borne Pathogens in Ticks Feeding on Migratory Passerines in Western Part of Estonia

Geller, Julia; Nazarova, Lidia; Katargina, Olga; Leivits, Agu; Järvekülg, Lilian; Golovljova, Irina

doi:10.1089/vbz.2012.1054

Cited by 47 publications

(56 citation statements)

References 35 publications

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“…Birds were shown to be important mobile hosts responsible for the spread of one or more stages of ticks and tick-borne pathogens such as Rickettsia, Borrelia, Anaplasma and Ehrlichia (ANDERSON et al, 1896;PARKER et al, 1933;HOOGSTRAAL, 1961;1963;SOMOV;SOLDATOV, 1964apud HUBÁLEK 2004OLSEN et al, 1993;GERN et al, 1998;HUMAIR et al, 1998;ALEKSEEV et al, 2001;BJÖERSDORFF et al, 2001;DANIELS et al, 2002;SANTOS-SILVA et al, 2006;SMITH et al, 2006;OGDEN et al, 2008;HAMER et al, 2011;GELLER et al, 2013;NORTE et al, 2013;LITERAK et al, 2015).…”

Section: Outside Of Brazil Mainly In Europe and Northmentioning

confidence: 99%

“…Migratory birds in particular have received much attention as they can transport potentially infected ticks across large areas and may account for the origin of some new foci of diseases (ANDERSON et al, 1986;OLSEN et al, 1995a;KLICH et al, 1996;SMITH et al, 1996;RAND et al, 1998;KINSEY et al, 2000;SCOTT et al, 2001SCOTT et al, , 2010SCOTT et al, , 2012JONGEJAN et al, 2004;MORSHED et al, 2005;DUBSKA et al, 2009;ELFVING et al, 2010;HILDEBRANDT et al, 2010;KJELLAND et al, 2010;HASLE et al, 2011;HASLE, 2013;MOVILA et al, 2011;GELLER et al, 2013;CAPLIGINA et al, 2014), even introducing them to different continents (OLSEN et al, 1995b;MUKHERJEE et al, 2014;. Although the role of birds as hosts and disseminators of ticks has received much attention over the past several years, there is a lack of studies in South America, including Brazil.…”

Section: Outside Of Brazil Mainly In Europe and Northmentioning

confidence: 99%

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Ticks (Acari: Ixodidae) as ectoparasites of Brazilian wild birds and their association with rickettsial diseases

Ogrzewalska

Pintér²

2016

Braz. J. Vet. Res. Anim. Sci.

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Ticks (Acari: Ixodidae) are obligatory hematophagous ectoparasites of a variety of vertebrate hosts and play an important role in the transmission and ecology of infectious pathogens causing diseases in humans and animals worldwide. Sixty-eight species of ticks exist in Brazil, and at least 23 are found parasitizing wild birds. This number is increasing with the advent of new studies highlighting the underestimated role of birds in the life cycle of these arthropods. In South America, many of these ticks are involved in epidemiology of the life-threatening spotted fever diseases caused by bacteria from the genus Rickettsia (Rickettsiales: Rickettsiaceae). The aim of this paper is to present up-to-date knowledge about the bird-tick fauna of Brazil and their association with rickettsioses. The available literature concerning ticks on birds and tick-borne diseases related to these ticks in Brazil has been revised. It could be concluded that birds play a primary role in life cycles of various tick species, especially during immature stages (larvae and nymphs). The best known is a bird-tick fauna from the Atlantic Forest and from Brazilian savannah called Cerrado in southern and central Brazil, respectively. On the other hand, the knowledge about bird tick parasitism from other Brazilian biomes such as the Amazon, Caatinga, Pantanal and Pampas regions is very scarce and requires further study. Moreover, no studies about the role of birds as mobile hosts for spreading ticks to new areas exist, nor has their role in the natural life cycle of Rickettsia been thoroughly examined.Keywords: Ticks. Ectoparasites. Rickettsia. Disease. Birds. Brazil. ResumoOs carrapatos (Acari: Ixodoidea) são ectoparasitas obrigatórias de uma variedade de hospedeiros vertebrados e têm um papel importante na ecologia e transmissão de diversos patógenos causadores de doenças em humanos e animais no mundo todo. No Brasil existem 68 espécies de carrapatos e pelo menos 23 espécies são encontradas parasitando aves silvestres. Esse número tem crescido com o advento de novos estudos ressaltando o papel das aves nos ciclos de vida desses artrópodes. Na América do Sul alguns desses carrapatos estão envolvidos na epidemiologia de doenças graves para o ser humano, como a febre maculosa, causada por bactérias do gênero Rickettsia (Rickettsiales: Rickettsiaceae). O alvo desse artigo é apresentar o estado atual de conhecimento sobre a fauna de carrapatos encontrados em aves no Brasil e as associações estabelecidas com as riquetsioses. A literatura disponível sobre carrapatos em aves e ocorrência de riquétsias foi revisada e pôde ser concluído que aves têm um papel importante nos ciclos de vida de várias espécies de carrapatos, sendo especialmente importantes para os estágios imaturos (larvas e ninfas). A maior parte do conhecimento sabrecai na fauna de carrapatos de aves dos biomas Mata Atlântica e Cerrado no sudeste e centro-oeste do Brasil. Já o conhecimento sobre o parasitismo por carrapatos em aves dos outros biomas: Amazônia, Caatinga, Pantanal...

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Section: Outside Of Brazil Mainly In Europe and Northmentioning

confidence: 99%

Section: Outside Of Brazil Mainly In Europe and Northmentioning

confidence: 99%

Ticks (Acari: Ixodidae) as ectoparasites of Brazilian wild birds and their association with rickettsial diseases

Ogrzewalska

Pintér²

2016

Braz. J. Vet. Res. Anim. Sci.

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“…(Alekseev et al, 2001; Bjöersdorff et al, 2001; Daniels et al, 2002; Ogden et al, 2008; Franke et al, 2012), Babesia spp. (Hasle et al, 2011), Rickettsia / Coxiella (Elfving et al, 2010; Socolovschi et al, 2012) and Tick-borne encephalitis virus (TBEV) (Waldenström et al, 2007; Geller et al, 2013). The prevalence of ticks on birds varies between years, season, locality and different bird species.…”

Section: Introductionmentioning

confidence: 99%

Transport of ixodid ticks and tick-borne pathogens by migratory birds

Hasle¹

2013

Front. Cell. Infect. Microbiol.

179

162

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Birds, particularly passerines, can be parasitized by Ixodid ticks, which may be infected with tick-borne pathogens, like Borrelia spp., Babesia spp., Anaplasma, Rickettsia/Coxiella, and tick-borne encephalitis virus. The prevalence of ticks on birds varies over years, season, locality and different bird species. The prevalence of ticks on different species depends mainly on the degree of feeding on the ground. In Europe, the Turdus spp., especially the blackbird, Turdus merula, appears to be most important for harboring ticks. Birds can easily cross barriers, like fences, mountains, glaciers, desserts and oceans, which would stop mammals, and they can move much faster than the wingless hosts. Birds can potentially transport tick-borne pathogens by transporting infected ticks, by being infected with tick-borne pathogens and transmit the pathogens to the ticks, and possibly act as hosts for transfer of pathogens between ticks through co-feeding. Knowledge of the bird migration routes and of the spatial distribution of tick species and tick-borne pathogens is crucial for understanding the possible impact of birds as spreaders of ticks and tick-borne pathogens. Successful colonization of new tick species or introduction of new tick-borne pathogens will depend on suitable climate, vegetation and hosts. Although it has never been demonstrated that a new tick species, or a new tick pathogen, actually has been established in a new locality after being seeded there by birds, evidence strongly suggests that this could occur.

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“…The first study to investigate TBEV RNA in ticks from migrating birds was done on 13,260 migrating birds on the southeast coast of Sweden in 2001, showing that 3.6% of the birds were tick-infested and TBEV RNA was detected in 4 of 1,155 investigated ticks (0.3%) [81]. A study on migrating birds in Western Estonia found that 1 of 249 investigated ticks (0.4%) were infected with TBEV [82]. Despite this low TBEV prevalence, migrating birds may be very important for spreading of TBEV over larger distances, considering that several hundred million birds migrate through Scandinavia every spring and fall [81].…”

Section: Vector-host Transmissionmentioning

confidence: 99%

Epidemiological and Ecological Studies of Tick-borne Encephalitis Virus

Lindblom¹

2014

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Tick-Borne Pathogens in Ticks Feeding on Migratory Passerines in Western Part of Estonia

Cited by 47 publications

References 35 publications

Ticks (Acari: Ixodidae) as ectoparasites of Brazilian wild birds and their association with rickettsial diseases

Ticks (Acari: Ixodidae) as ectoparasites of Brazilian wild birds and their association with rickettsial diseases

Transport of ixodid ticks and tick-borne pathogens by migratory birds

Epidemiological and Ecological Studies of Tick-borne Encephalitis Virus

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