Identification of infection by Leishmania spp. in wild and domestic animals in Brazil: a systematic review with meta-analysis (2001–2021)

Leishmaniasis is a zoonosis caused by protozoan species of the genus Leishmania . It generates different clinical manifestations in humans and animals, and it infects multiple hosts. Leishmania parasites are transmitted by sandfly vectors. The main objective of this systematic review was to identify...

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Veröffentlicht in:Parasitology research (1987) 2023-07, Vol.122 (7), p.1605-1619
Hauptverfasser: Ratzlaff, Fabiana Raquel, Osmari, Vanessa, da Silva, Daniele, de Paula Vasconcellos, Jaíne Soares, Pötter, Luciana, Fernandes, Fagner D’ambroso, de Mello Filho, José Américo, de Avila Botton, Sônia, Vogel, Fernanda Silveira Flores, Sangioni, Luís Antônio
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Sprache:eng
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Zusammenfassung:Leishmaniasis is a zoonosis caused by protozoan species of the genus Leishmania . It generates different clinical manifestations in humans and animals, and it infects multiple hosts. Leishmania parasites are transmitted by sandfly vectors. The main objective of this systematic review was to identify the host, or reservoir animal species, of Leishmania spp., with the exception of domestic dogs, that were recorded in Brazil. This review included identification of diagnostic methods, and the species of protozoan circulating in the country. For this purpose, a literature search was conducted across index journals. This study covered the period from 2001 to 2021, and 124 studies were selected. Eleven orders possible hosts were identified, including 229 mammalian species. Perissodactyla had the highest number of infected individuals (30.69%, 925/3014), with the highest occurrence in horses. In Brazil, the most commonly infected species were found to be: horses, domestic cats, rodents, and marsupials. Bats, that were infected by one or more protozoan species, were identified as potential reservoirs of Leishmania spp. Molecular tests were the most commonly used diagnostic methods (94 studies). Many studies have detected Leishmania spp. ( n  = 1422): Leishmania ( Leishmania ) infantum ( n  = 705), Leishmania ( Viannia ) braziliensis ( n  = 319), and Leishmania ( Leishmania ) amazonensis ( n  = 141). Recognizing the species of animals involved in the epidemiology and biological cycle of the protozoan is important, as this allows for the identification of environmental biomarkers, knowledge of Leishmania species can improve the control zoonotic leishmaniasis.
ISSN:0932-0113
1432-1955
DOI:10.1007/s00436-023-07862-y