| bionomics of anopheles aquasalis curry 1932, in guaraí, state of rio de janeiro, southeastern brazil--i. seasonal distribution and parity rates. | from a total of 12,721 anophelines collected in a lowland area in guaraí, rio de janeiro, from november 1991 to october 1992, 99.7% (12,688) were anopheles aquasalis. this species occurred throughout the year, but in higher numbers from april to september, when rainfall was low or moderate. the proportion of parous females in june was significantly higher than the annual rate. an. aquasalis was weakly attracted by a light-trap, and no significant differences in abundance were detected between ni ... | 1996 | 9040843 |
| [identification of food sources of anopheles aquasalis (diptera: culicidae) by precipitin test in the state of rio de janeiro, brazil]. | anopheles aquasalis has shown local variations in blood-host preference in brazil: it seems to be anthropophilic in the northeast and zoophilic or opportunistic in the amazon and other regions. a study was carried out in guapimirim county, state of rio de janeiro, from may to november 1992, for the purpose of identifying the blood meal source of this anopheline by capillary tube precipitin test. a total of 1,366 females were captured at natural resting-places, 725 of which were blood-fed. the gu ... | 1996 | 9077010 |
| description of the occurrence of canine dirofilariasis in the state of rio de janeiro, brazil. | in order to evaluate the prevalence of canine heartworm in the state of rio de janeiro, a multicenter survey was carried out in two phases. the survey involved 1376 dogs from two cities: rio de janeiro and niterói, and its surroundings, including the eastern shore and mountain resorts, which were further divided into sections. in the first phase, 795 dog blood samples were examined by the modified knott test for the detection of microfilariae. a total of 134 samples (16.85%) were microfilaremic: ... | 1997 | 9302414 |
| conforming strategies of public health campaigns to disease specificity and national contexts: rockefeller foundation's early campaigns against hookworm and malaria in brazil. | the early experience of rockefeller foundation in brazil, starting in 1915, reflected the idea of extending learned experience in southern us to a wide international context. health education and the creation of permanent local health services were expressed as main guidelines for cooperation with state and federal brazilian agencies. translating to the shaping of public health models the terms of scientific hygiene associated with the pastorian revolution, rf pictured different actions as part ... | 1998 | 9653743 |
| penicillium species in mosquitoes from two brazilian regions. | penicillium species were isolated from 1073 adult mosquitoes and larvae of aedes spp., anopheles spp., culex spp. and mansonia spp. captured in the northern and southeastern regions of brazil. in a total of 24 collections, 198 penicillium strains were identified in 13 species: penicillium canescens, p. chrysogenum, p. citrinum, p. corylophilum, p. decumbens, p. expansum, p. fellutanum, p. implicatum, p. janthinellum, p. oxalicum, p. purpurogenum, p. viridicatum and p. waksmanii. the total isolat ... | 1998 | 9871332 |
| [finding of anophelines, subgenus nyssorhynchus, in artificial containers, brazil]. | larvae and a pupa of anophelines were found in deactivated artificial containers. anopheles argyritarsis larvae were found in an abandoned water container in pedregulho, district of ponta negra, and a anopheles aquasalis pupa was found in a container left outdoors as part of an experiment, in the district of itaipuaçu. three cases of malaria were reported in this same district in 1997. both findings of anophelines took place in a town of the state of rio de janeiro, brazil. | 2001 | 11600932 |
| isoenzimatic analysis of four anopheles (kerteszia) cruzii (diptera: culicidae) populations of brazil. | anopheles cruzii is a small sylvatic mosquito and primary human plasmodium vector in southern brazil. the distribution of this bromeliad-breeding mosquito follows the atlantic forest coastal distribution, where bromeliads are abundant. morphological, genetic, and molecular polymorphisms among different populations have been reported and it has recently been suggested that an. cruzii is a complex of cryptic species. the aim of this work is to analyze the gene flow between different populations of ... | 2004 | 15543408 |
| [effects of the installation of the rosal hydroelectric power station, itabapoana river, states of espírito santo and rio de janeiro, on anophelinae, planorbidae and phlebotominae]. | the construction of dams usually changes the composition of the fauna within their areas of influence. in the area where the rosal hydroelectric power station has been installed, in the states of espírito santo and rio de janeiro, changes to the abundance of anophelinae, planorbidae and phlebotominae were evaluated before (1998-2000) and after (2000-2005) the damming. nine sample collection points were defined, each represented by a home and its outbuildings, shelters for domestic animals and wa ... | 2009 | 19448934 |
| molecular evidence for the occurrence of a new sibling species within the anopheles (kerteszia) cruzii complex in south-east brazil. | anopheles cruzii (diptera: culicidae) has long been known as a vector of human and simian malaria parasites in southern and south-eastern brazil. previous studies have provided evidence that an. cruzii is a species complex, but the status of the different populations and the number of sibling species remains unclear. a recent analysis of the genetic differentiation of the timeless gene among an. cruzii populations from south and south-east brazil has suggested that the population from itatiaia, ... | 2010 | 20102614 |
| blood meal identification of selected mosquitoes in rio de janeiro, brazil. | abstract. the blood meal sources of 5 species (mansonia titillans, aedes scapularis, culex quinquefasciatus, coquillettidia shannoni, and anopheles peryassui) collected in conceição do macacu, in the southeastern brazilian state of rio de janeiro, were examined with the precipitin test. of the 1,128 mosquitoes collected, 907 (80.4%) reacted to some antisera. although all 5 species were eclectic in their feeding habits, ma. titillans and ae. scapularis fed mostly on birds, while cx. quinquefascia ... | 2010 | 20402346 |