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Tungiasis in domestic, wild, and synanthropic animals in Brazil

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ACTA TROPICA
卷 222, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.actatropica.2021.106068

关键词

Animal reservoir; Siphonaptera; Neglected diseases; Tunga

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Tungiasis is a parasitic skin disease caused by fleas of the genus Tunga, with dogs, cats, pigs, and synanthropic rodents as the main animal reservoirs. In Brazil, Tunga penetrans is the most common species, predominantly affecting humans and pet dogs, leading to serious consequences. Poor management and hygiene habits contribute to disease spread, while strategies based on the concept of One Health can offer more effective control of tungiasis.
Tungiasis is an ectoparasitic skin disease of humans and warm-blooded animals caused by fleas of the genus Tunga (Jarocki, 1938). Dogs, cats, pigs, and synanthropic rodents are the main animal reservoirs. Of the 14 known species, 12 are found in Latin America and, among these, eight are found in Brazil, including the two zoonotic species Tunga penetrans and Tunga trimamillata. Tunga penetrans predominates among humans and Brazilian pets, where the dog is the most affected species, and its presence is a risk factor associated with the disease in humans. Tunga spp. are widely distributed throughout the national territory, with T. penetrans being the most dispersed and the most frequent in animals from endemic areas, especially in underprivileged communities. Infections in animals, associated with inadequate management, favor the spread and perpetuation of the disease. Intense injuries can result in sequelae and serious clinical conditions, compromising the health, welfare, and productivity of animals, as well as leading to death. Health precariousness, lack of control and neglect in the management of populations of domestic and synanthropic animals, poor hygiene habits of individuals, lack of information from both the population and related professionals, lack of effective treatment, and of perception of tungiasis as a disease are among the main challenges for the control of this parasitosis. As recommended for other zoonotic Neglected Tropical Diseases, strategies based on the concept of One Health can guarantee more effective results in the fight against human and animal tungiasis.

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