Publications

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cotton rats (sigmodon hispidus) and black rats (rattus rattus) as possible reservoirs of leishmania spp. in lara state, venezuela.a total of 519 wild animals belonging to eleven species were collected during a two year study in a cutaneous leishmaniasis endemic area in venezuela (la matica, lara state). the animals were captured in home-made tomahawk-like traps baited with maize, bananas or other available local fruits, and parasites were isolated from 27 specimens. two different species were found naturally infected with flagellates, i.e., cotton rats (sigmodon hispidus) and black rats (rattus rattus). characterization of ...200212016437
wild and synanthropic hosts of leishmania (viannia) braziliensis in the endemic cutaneous leishmaniasis locality of amaraji, pernambuco state, brazil.evidence of leishmania infection was found in small mammals captured between 1996 and 2000 in the amaraji region, pernambuco state, brazil. the kdna polymerase chain reaction (pcr), using primers specific for subgenus l. (viannia), was positive for 43/153 water rats (nectomys squamipes), 13/81 black rats (rattus rattus), 15/103 grass mice (bolomys lasiurus), 1/14 marsh mice (holochilus scieurus), 2/50 field mice (akodon arviculoides), 2/12 woolly opossums (marmosa sp.), and 5/37 common opossums ...200315228244
detection of leishmania (viannia) braziliensis complex in wild mammals from colombian coffee plantations by pcr and dna hybridization.the small mammal fauna of coffee plantations in sw colombia was surveyed to determine which of the species present were infected with parasites of the leishmania (viannia) braziliensis complex and might therefore act as reservoirs of human cutaneous leishmaniasis. fifty animals of seven different species were captured. tissue samples were taken from the ears of specimens from each of the seven species. thirty three samples were analysed by polymerase chain reaction (pcr) using oligonucleotide pr ...19989588240
the identity of leishmania isolated from sand flies and vertebrate hosts in a major focus of cutaneous leishmaniasis in baturite, northeastern brazil.during a field investigation carried out in baturite, brazil from 1989 to 1991, sand flies, sympatric rodents, domestic dogs and humans were surveyed for leishmaniasis. twenty strains of leishmania were isolated by in vitro culture from lutzomyia whitmani, three strains were obtained from rattus rattus, two strains from dogs, and five strains from humans. the isolates were characterized by isoenzyme electrophoresis by hybridization with kinetoplast dna-specific probes. all the samples were ident ...19948116807
small mammals as hosts of leishmania spp. in a highly endemic area for zoonotic leishmaniasis in north-eastern brazil.leishmania parasites cause leishmaniasis in humans and animals worldwide. these parasites are transmitted by phlebotomine sand flies, which become infected upon feeding on an infected mammalian host. we assessed the occurrence of leishmania infection in small mammals in an area of cutaneous and visceral leishmaniasis endemicity.201323868744
[ecological aspects of american tegumentary leishmaniasis: 8. evaluation of the enzootic activity of leishmania (viannia) braziliensis, in forest and peridomiciliary environments of the ribeira valley region, são paulo state, brazil].the evidence of mucocutaneous leishmaniasis transmission in the non-forest environment in the ribeira valley region, são paulo, brazil, has made this epidemiologic four years' study possible, viewing the enzootic activity of l. (v.) braziliensis. furthermore, the natural infection in small mammals and the domestic dog population has been completed in collecting of phlebotomine sandflies in the forest and peridomiciliar environments. positive test-results have only been found in resident dogs (ca ...19902095626
infectiousness of sylvatic and synanthropic small rodents implicates a multi-host reservoir of leishmania (viannia) braziliensis.the possibility that a multi-host wildlife reservoir is responsible for maintaining transmission of leishmania (viannia) braziliensis causing human cutaneous and mucocutaneous leishmaniasis is tested by comparative analysis of infection progression and infectiousness to sandflies in rodent host species previously shown to have high natural infection prevalences in both sylvatic or/and peridomestic habitats in close proximity to humans in northeast brazil.201526448187
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