| leishmaniasis in brazil. xxii: characterization of leishmania from man, dogs and the sandfly lutzomyia longipalpis (lutz & neiva, 1912) isolated during an outbreak of visceral leishmaniasis in santarém, pará state. | during epidemiological studies on an outbreak of visceral leishmaniasis in santarém, pará state, north brazil, isolates of leishmania from two children, three dogs and six naturally infected specimens of the sandfly lutzomyia longipalpis were compared, biochemically, by starch-gel enzyme electrophoresis. they have proved to be indistinguishable from each other, and from a reference strain of leishmania chagasi cunha & chagas, 1937 from a case of human visceral leishmaniasis from bahia state, nor ... | 1986 | 3726975 |
| leishmaniasis in brazil. xix: visceral leishmaniasis in the amazon region, and the presence of lutzomyia longipalpis on the island of marajó, pará state. | sporadic cases of visceral leishmaniasis in amazonian brazil appear limited to pará state, in the lower amazon valley and principally near the atlantic coast. the fox cerdocyon thous (l.) has been incriminated as a natural host of the causative parasite, leishmania donovani chagasi, but past doubts have existed over the identification of the most likely vector as lutzomyia (lutzomyia) longipalpis (lutz & neiva, 1912). investigations on two of five recent cases of visceral leishmaniasis of man in ... | 1983 | 6623589 |
| correlates of the peridomestic abundance of lutzomyia longipalpis (diptera: psychodidae) in amazonian brazil. | abundance of the sandfly lutzomyia longipalpis, the vector of leishmania chagasi, was surveyed using cdc light-suction traps in fifteen villages and 180 homesteads on marajó island, pará state, brazil. flies were most abundant in cultivated areas, secondary growth and open woodland, away from savanna grassland and forest. within homesteads, the abundance of flies in animal sheds was weakly associated with the number of hosts kept therein, and inversely related to the number elsewhere, both human ... | 1994 | 7949312 |
| chemical analysis of compounds extracted from the tergal "spots" of lutzomyia longipalpis from brazil. | the chemical composition of the compounds contained in the tergal spots of lutzomyia longipalpis was investigated. four populations of l. longipalpis were examined, originating from: sobral, ceará, brazil (one spot and two spot populations), santarém, pará, brazil (one spot) and marajó island, pará, brazil (one spot). the tergal spots were dissected out, extracted in hexane and analysed on a gas chromatograph/mass spectrometer. two compounds were found, identical to compounds found in earlier st ... | 1986 | 2877553 |
| host preferences of the phlebotomine sandfly lutzomyia longipalpis in amazonian brazil. | experiments were undertaken to determine the relative attractiveness of humans, dogs and chickens to lutzomyia longipalpis, the principal vector of leishmania chagasi causing american visceral leishmaniasis. field experiments in two villages on marajó island, pará state, brazil, showed that one boy attracted significantly more flies than one dog or chicken, and slightly fewer flies than a group of six chickens. experiments with laboratory-bred female flies showed that a significantly greater num ... | 1992 | 1421498 |
| leishmanial infections in lutzomyia longipalpis and lu. antunesi (diptera: psychodidae) on the island of marajó, pará state, brazil. | | 1984 | 6485061 |
| leishmaniasis in brazil. xxi. visceral leishmaniasis in the amazon region and further observations on the role of lutzomyia longipalpis (lutz & neiva, 1912) as the vector. | further evidence is presented incriminating the sandfly lutzomyia longipalpis as the vector of leishmania chagasi, the causative agent of american visceral leishmaniasis, in the amazon region of brazil. during an outbreak of the disease in santarém, pará state, this insect was shown to be the only species of sandfly consistently present in and around the patient's homes, where it often occurred in very large numbers. of 491 specimens dissected, 35 (7.14%) proved to be infected, and isolates of l ... | 1985 | 4002291 |