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A mini-exon multiplex polymerase chain reaction to distinguish the major groups of Trypanosoma cruzi and T. rangeli in the Brazilian Amazon.
The chagasdisease-like symptoms seen in patients with central giant cell granuloma are similar to those of other central nervous system diseases and are likely to be passed on through the immune system through various routes, including contact chemoreception, EMT and ‘cell reprograming’. Expand
Characterization and classification of leishmanial parasites from humans, wild mammals, and sand flies in the Amazon region of Brazil.
The importance of these results with respect to the taxonomic status of the New World Leishmania, and their implications for both clinical and epidemiologic data are discussed. Expand
Brazilian isolates of Trypanosoma cruzi from humans and triatomines classified into two lineages using mini-exon and ribosomal RNA sequences.
Traditional molecular and biochemical methods, such as schizodeme analysis, karyotyping, DNA fingerprinting, and enzyme electrophoretic profiles, have shown a large variability among TrypanosomaExpand
Trypanosoma cruzi in Brazilian Amazonia: Lineages TCI and TCIIa in wild primates, Rhodnius spp. and in humans with Chagas disease associated with oral transmission.
These data are important in understanding the complexity of the transmission cycles, genetic structure, and evolutionary history of T. cruzi populations circulating in Amazonia, and they contribute to both the unravelling of human infection routes and the pathological peculiarities of Chagas disease in this region. Expand
Epidemiological and nosological aspects of Leishmania naiffi Lainson & Shaw, 1989.
A new case of cutaneous leishmaniasis caused by L. naiffi is described from the Manaus area, making a total of three known cases of human infection by this parasite. Expand
Development of Hepatozoon caimani (Carini, 1909) Pess a, De Biasi & De Souza, 1972 in the Caiman Caiman c. crocodilus, the frog Rana catesbeiana and the mosquito Culex fatigans.
The sporogony of Hepatozoon caimani has been studied, by light microscopy, in the mosquito Culex fatigans fed on specimens of the caiman Caiman c. crocodilus showing gametocytes in their peripheralExpand
Haemoproteus (Apicomplexa: Haemoproteidae) of tortoises and turtles
A comparison of one haemoproteid blood parasites of chelonians in the tortoise Geochelone denticulata with another in the river turtle Peltocephalus dumerilianus, from Amazonian Brazil, has revealed clear morphological differences. Expand
Flagellate infections of Brazilian sand flies (Diptera: Psychodidae): isolation in vitro and biochemical identification of Endotrypanum and Leishmania.
Observations suggested that Shannoni group sand flies were the natural vectors of Endotrypanum. Expand
Species diversity and flagellate infections in the sand fly fauna near Porto Grande, State of Amapá, Brazil (Diptera: Psychodidae. Kinetoplastida: Trypanosomatidae).
Seventy-six species of Lutzomyia and one species of Brumptomyia were identified among 20,008 sand flies collected in central Amapá, reinforcing the idea that salivary gland invasion may be part of the normal life cycle of Leishmania in nature. Expand