Publications

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variables that modulate the spatial distribution of trypanosoma cruzi and trypanosoma evansi in the brazilian pantanal.an evaluation was made on how the landscape and cattle ranching affect the transmission cycles and the patterns of tripanosomatid infection (trypanosoma cruzi and trypanosoma evansi) of small wild mammals in the pantanal. this region comprises a large natural environment with a multiplicity of habitats, wide variety of biodiversity besides the presence of livestock. t. cruzi and t. evansi infections were evaluated by parasitological and serological methods in one preserved and one cattle ranchin ...200717451633
what is the role of small rodents in the transmission cycle of trypanosoma cruzi and trypanosoma evansi (kinetoplastida trypanosomatidae)? a study case in the brazilian pantanal.determining the reservoir hosts for parasites is crucial for designing control measures, but it is often difficult to identify the role that each host species plays in maintaining the cycle of infection in the wild. one way to identify potential maintenance hosts is to estimate key parameters associated with transmission and pathogenicity. here we assess the potential for three native rodent species of the brazilian pantanal (clyomys laticeps, thrichomys pachyurus and oecomys mamorae) to act as ...200919467452
the role of sigmodontine rodents as sylvatic hosts of trypanosoma cruzi in the argentinean chaco.the role of rodents in the sylvatic transmission of trypanosoma cruzi has seldom been investigated using parasitological and molecular methods. we assessed the occurrence of t. cruzi in wild small rodents from pampa del indio, in the argentinean chaco, and identified the taxonomic status of positive rodents by sequencing a fragment of cytochrome b gene (cytb) and performing blast searches and phylogenetic analyses. a total of 176 sigmodontinae rodents was captured in six surveys using 5425 trap- ...201424394448
a new species of cystoisospora frenkel, 1977 (apicomplexa: sarcocystidae) from oecomys mamorae thomas (rodentia: cricetidae) in the brazilian pantanal.despite the great diversity of coccidians, to our knowledge, no coccidian infections have been described in oecomys spp. in this context, we examined oecomys mamorae thomas (rodentia: cricetidae) from the brazilian pantanal for infections with enteric coccidia. nine individuals were sampled, and one was found to be infected. the oöcysts were recovered through centrifugal flotation in sugar solution. using morphological and morphometric features, we described a new species of cystoisospora frenke ...201829549562
a new heligmonellid (nematoda: heligmonellidae) from oecomys mamorae (rodentia: sigmodontinae) in the pantanal and new data on the synlophe of guerrerostrongylus zetta from the atlantic forest, brazil.a new species of heligmonellidae nematode, guerrerostrongylus gomesae n. sp., is described from specimens collected from the small intestine of the rodent oecomys mamorae thomas, 1906 in the brazilian pantanal. it differs from the 2 other species of the genus by the number of ridges in the synlophe 35-46 and 40-48 at the midbody in the male and female, respectively, by rays 8 arising at midlength of the dorsal trunk, ending near the margin of the caudal bursa, and the dorsal ray divided at the s ...201222468958
molecular detection of hepatozoon spp. in domestic dogs and wild mammals in southern pantanal, brazil with implications in the transmission route.hepatozoon parasites comprise intracellular apicomplexan parasites transmitted to vertebrate animals by ingestion of arthropods definitive hosts. the present work aimed to investigate the occurrence of hepatozoon spp. in wild animals, domestic dogs and their respective ectoparasites, in southern pantanal region, central-western brazil, by molecular techniques. between august 2013 and march 2015, 31 coatis (nasua nasua), 78 crab-eating foxes (cerdocyon thous), seven ocelots (leopardus pardalis), ...201728291601
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