Abstract
In the study undertaken by Souza et al. [Primates 64(1):153–159, 2022; https://doi.org/10.1007/s10329-022-01038-5], published in the most recent volume of this journal, the blood samples of two Alouatta guariba clamitans (Primates, Atelidae) from two municipalities in the state of Rio Grande do Sul, southern Brazil were reported to be positive for Mansonella perstans. This is the first reported finding of M. perstans in A. guariba clamitans, as well as the first time that M. perstans has been recorded in Brazil outside the Amazon region. We would like to express our concern about this finding, specifically with respect to the geographical distribution of M. perstans in Brazil, as, up until this study, this filaria had only been found in the upper Rio Negro region in São Gabriel da Cachoeira, Amazonas, Brazil. Moreover, species identification was performed using partial sequences of three gene fragments, namely internal transcribed spacer 2, 12S, and 18S, yet neither the phylogenetic trees nor the BLAST alignments of these sequences provided supporting evidence that they belong to M. perstans.
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Medeiros, J.F., Aguirre, A.d.A.R. & Pessoa, F.A.C. Inaccurate recording of Mansonella perstans in free-ranging primates outside its endemic area in Brazil?. Primates 64, 595–597 (2023). https://doi.org/10.1007/s10329-023-01081-w
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DOI: https://doi.org/10.1007/s10329-023-01081-w