Infestação de Tunga penetrans siphonaptera: Tungidae em cascos de vacas leiteiras F1 Holandês-Zebu

Ribeiro, Jéferson Corrêa; Coelho, Susana; Ruas, José Reinaldo Mendes; Lana, Ângela Maria Quintão; Carvalho, A.Ú.; Filho, Elias Jorge Facury; Saturnino, H.M.; Reis, Ricardo

doi:10.1590/s0102-09352007000200038

Cited by 10 publications

(12 citation statements)

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“… Infested (no.) Prevalence (%) T. caecata R. norvegicus 824 82 9.9 São Paulo, SP, Brazil Meira ( 1934 ) R. rattus 445 13 2.9 M. musculus 135 2 1.5 T. caecigena R. rattus 250 68 27.2 Soochow, China Wu ( 1930 ) in Jordan ( 1962 ) R. norvegicus T. terasma D. novemcinctus 34 4 11.7 Alegre, ES, Brazil Antunes et al ( 2006 ) E. sexcinctus 31 1 3.2 Pantanal da Nhecolândia, MS, Brazil Medri ( 2008 ) T. monositus P. eremicus P. crinitis 21 6 28.6 Washington County, UT, USA Hastriter ( 1997 ) N. lepida T. trimamillata Bos taurus 170 130 76.4 Felixlândia, MG, Brazil Ribeiro et al ( 2007 ) T. trimamillata or T. penetrans Bos taurus 550 375 68.2 Jataí, GO, Brazil Da Silva et al ( 2001 ) …”

Section: Infestationmentioning

confidence: 99%

Neosomes of tungid fleas on wild and domestic animals

Linardi

Avelar

2014

Parasitol Res

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Tunga is the most specialized genus among the Siphonaptera because adult females penetrate into the skin of their hosts and, after mating and fertilization, undergo hypertrophy, forming an enlarged structure known as the neosome. In humans and other warm-blooded animals, neosomes cause tungiasis, which arises due to the action of opportunistic agents. Although its effects on humans and domestic animals are well described in the literature, little is known about the impact of tungiasis on wild animals. This review focuses on the morphology, taxonomy, geographical distribution, hosts, prevalence, sites of attachment, and impact of tungid neosomes on wild and domestic animals. Because neosomes are the most characteristic form of the genus Tunga and also the form most frequently found in hosts, they are here differentiated and illustrated to aid in the identification of the 13 currently known species. Perspectives for future studies regarding the possibility of discovering other sand flea species, adaptation to new hosts, and the transfer of tungids between hosts in natural and modified habitats are also presented.Electronic supplementary materialThe online version of this article (doi:10.1007/s00436-014-4081-8) contains supplementary material, which is available to authorized users.

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Section: Infestationmentioning

confidence: 99%

Neosomes of tungid fleas on wild and domestic animals

Linardi

Avelar

2014

Parasitol Res

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“…The lesions are often multiple and agglomerate, and are covered with thick crusts. Recently, several cases of bovine tungiasis were described in Minas Gerais, Brazil (Ribeiro et al ., 2007), with prevalences of 90.5–100% in Holstein‐Zebu cows during the dry season; these were thought to represent T. trimamillata infestations on the basis of the images included in the paper. In bovines, goats and sheep, T. trimamillata tends to embed along the coronary band (Fig.…”

Section: Clinical Manifestationsmentioning

confidence: 99%

Sand flea (Tunga spp.) infections in humans and domestic animals: state of the art

Pampiglione

Fioravanti

Gustinelli

et al. 2009

Medical Vet Entomology

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Tungiasis is a parasitic disease of humans and animals caused by fleas (Siphonaptera) belonging to the genus Tunga. Two species, Tunga penetrans (L.) and Tunga trimamillata, out of 10 described to date, are known to affect man or domestic animals; the other eight are exclusive to a few species of wild mammals. Tunga penetrans and T. trimamillata originated from Latin America, although the first species is also found in sub-Saharan Africa (between 20 degrees N and 25 degrees S). Hundreds of millions of people are at risk of infection in more than 70 nations, mostly in developing countries. The second species has been reported only in Ecuador and Peru. Males and non-fertilized females of Tunga are haematophagous ectoparasites; pregnant females penetrate the skin where, following dilatation of the abdomen, they increase enormously in size (neosomy) and cause inflammatory and ulcerative processes of varying severity. The importance of Tunga infection in humans concerns its frequent localization in the foot, which sometimes causes very serious difficulty in walking, thereby reducing the subject's ability to work and necessitating medical and surgical intervention. Tungiasis in domestic animals can be responsible for economic losses resulting from flea-induced lesions and secondary infections. Because tungiasis represents a serious problem for tropical public health and because of the recent description of a new species (Tunga trimamillata), it seems appropriate to review current knowledge of the morphology, molecular taxonomy, epidemiology, pathology, treatment and control of sand fleas of the genus Tunga.

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“…Indeed, we observed that some of our trained hounds and three project field workers were infested by T. penetrans during our capture seasons. Despite the report of tungiasis affecting cattle in Brazil (Ribeiro et al 2007), there is no local evidence of this disease occurring in cattle within the study area. The 100% prevalence of tungiasis in the studied jaguar population may be related to the fact that all captures were performed during the dry season, when the incidence of this disease appears to increase (Heukelbach et al 2005).…”

Section: Discussionmentioning

confidence: 70%

Tungiasis in a free-ranging jaguar (Panthera onca) population in Brazil

Widmer

Azevedo

2011

Parasitol Res

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Tungiasis is an ectoparasitic disease caused by fleas of the genus Tunga. The disease is reported to occur mostly in human populations. In wildlife, however, the occurrence and impact of this disease remains uncertain. We captured and examined 12 free-ranging jaguars for the presence of Tunga penetrans in the Pantanal region of Mato Grosso do Sul state, Brazil. Tungiasis prevalence was 100% in the population; lesions were confined to the jaguar's paws. T. penetrans was identified based on the characteristics of the embedded fleas and the morphological identification of a collected free-living flea. The intensity and stage of infestation varied between individual animals. However, in general, all captured jaguars were in good health. The 100% prevalence of tungiasis may be related to the fact that all captures were performed during the dry season. Their high ecological requirements for space make jaguars potential disseminators of T. penetrans in the Pantanal region. Because cattle ranching and ecotourism are the main economic activities in the Pantanal, further studies should evaluate the risks of tungiasis to human and animal health. To the best of our knowledge, this is the first report of tungiasis in jaguars.

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Infestação de Tunga penetrans siphonaptera: Tungidae em cascos de vacas leiteiras F1 Holandês-Zebu

Abstract: Infestação de

Cited by 10 publications

References 2 publications

Neosomes of tungid fleas on wild and domestic animals

Neosomes of tungid fleas on wild and domestic animals

Sand flea (Tunga spp.) infections in humans and domestic animals: state of the art

Tungiasis in a free-ranging jaguar (Panthera onca) population in Brazil

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