Results 1 to 10 of about 256 (111)

The South-American distribution and southernmost record of Biomphalaria peregrina—a potential intermediate host of schistosomiasis [PDF]

PeerJ, 2017
Schistosomiasis remains a major parasitic disease, endemic in large parts of South America. Five neotropical species of Biomphalaria have been found to act as intermediate hosts of Schistosoma mansoni in natural populations, while others have been shown ...
Alejandra Rumi, Roberto Eugenio Vogler, Ariel Aníbal Beltramino   +2 more
doaj   +8 more sources

Characterization of Biomphalaria orbignyi, Biomphalaria peregrina and Biomphalaria oligoza by polymerase chain reaction and restriction enzyme digestion of the internal transcribed spacer region of the RNA ribosomal gene [PDF]

Memorias do Instituto Oswaldo Cruz, 2000
The correct identification of Biomphalaria oligoza, B. orbignyi and B. peregrina species is difficult due to the morphological similarities among them. B. peregrina is widely distributed in South America and is considered a potential intermediate host of
Linus Spatz, Teofânia HDA Vidigal, Márcia CA Silva, Stella Maris Gonzalez Cappa, Omar S Carvalho   +4 more
doaj   +6 more sources

Resistência de Biomphalaria peregrina de Santa Rita do Sapucaí, Minas Gerais, a infecção com três cepas de Schistosoma mansoni Resistance of Biomphalaria peregrina from Santa Rita do Sapucaí, State of Minas Gerais, Brazil, to infection with strain of Schistosoma mansoni [PDF]

Memorias do Instituto Oswaldo Cruz, 1988
Descendentes do planorbídeo Biomphalaria peregrina, coletados em Santa Rita do Sapucaí, Minas Gerais, Brasil, foram expostos a miracídios de três cepas de Schistosoma mansoni: "LE" de Belo Horizonte, MG; "SJ" de São José dos Campos, SP e "AL" do Estado ...
Cecília Pereira de Souza, Liana Konovaloff Janotti Passos, Omar dos Santos Carvalho   +2 more
doaj   +5 more sources

Biomphalaria molluscs (Gastropoda: Planorbidae) in Rio Grande do Sul, Brazil

Memorias do Instituto Oswaldo Cruz, 2009
The present study was aimed at characterising Biomphalaria species using both morphological and molecular (PCR-RFLP) approaches. The specimens were collected in 15 localities in 12 municipalities of the southern region of the state of Rio Grande do Sul ...
Michele Soares Pepe, Roberta Lima Caldeira, Omar dos Santos Carvalho, Gertrud Muller, Liana Konovaloff Jannotti-Passos, Alice Pozza Rodrigues, Hugo Leonardo Amaral, Maria Elisabeth Aires Berne   +7 more
doaj   +4 more sources

Characterization of South American Snails of the Genus Biomphalaria (Basommatophora: Planorbidae) and Schistosoma mansoni (Platyhelminthes: Trematoda) in Molluscs by PCR-RFLP. [PDF]

Biomed Res Int, 2016
The identification of snails of the genus Biomphalaria can be done using morphological characteristics which depends on the size of the snails and skill and knowledge of researcher. These methods sometimes are not adequate for identification of species.
Caldeira RL, Teodoro TM, Jannotti-Passos LK, Lira-Moreira PM, Goveia CO, Carvalho OD.   +5 more
europepmc   +2 more sources

Comparative mitogenomics of freshwater snails of the genus Biomphalaria (Gastropoda: Planorbidae) and new insights into mitochondrial genome evolution in Hygrophila [PDF]

BMC Ecology and Evolution
Background Freshwater snails of the genus Biomphalaria include several species of major public health importance as intermediate hosts of schistosomiasis and represent a key group for evolutionary and taxonomic research within Hygrophila.
Leila B. Guzmán, Ariel A. Beltramino, Alejandra Rumi, Roberto E. Vogler   +3 more
doaj   +2 more sources

Use of indicator kriging to investigate schistosomiasis in minas gerais state, Brazil. [PDF]

J Trop Med, 2012
Geographic Information Systems (GISs) are composed of useful tools to map and to model the spatial distribution of events that have geographic importance as schistosomiasis. This paper is a review of the use the indicator kriging, implemented on the Georeferenced Information Processing System (SPRING) to make inferences about the prevalence of ...
Guimarães RJ, Freitas CC, Dutra LV, Felgueiras CA, Drummond SC, Tibiriçá SH, Oliveira G, Carvalho OS.   +7 more
europepmc   +2 more sources

Planorbidae, Lymnaeidae and Physidae of Ecuador (Mollusca: Basommatophora)

Memorias do Instituto Oswaldo Cruz, 2004
In the course of a trip to Ecuador I had the opportunity of collecting topotypic specimens of the following nominal species of pulmonate molluscs: Biomphalaria cousini Paraense, 1966; Planorbis equatorius Cousin, 1887; P.
W Lobato Paraense
doaj   +4 more sources

Freshwater snails and Schistosomiasis mansoni in the state of Rio de Janeiro, Brazil: IV - Sul Fluminense Mesoregion

Memorias do Instituto Oswaldo Cruz, 2004
In this paper, the forth of a series dealing with the survey of freshwater gastropods of the state of Rio de Janeiro, the results of collections carried out in the Sul Fluminense Mesoregion from 2000 to 2002 are presented and revealed the occurrence of ...
Silvana C Thiengo, Aline C Mattos, M Fernanda Boaventura, Monica A Fernandez   +3 more
doaj   +4 more sources

Effects of droughts on the larval digenean assemblage that parasitizes the snail Biomphalaria peregrina (Planorbidae): a 4-year study in a temporary pond from Argentina

Parasitology Research, 2021
Temporary ponds are ecologically valuable habitats and useful sites for studies of diversity, ecology, evolution, and climate change. Organisms inhabiting these environments have developed strategies to ensure their survival. However, little is known about the temporal dynamics and strategies of parasites in these habitats.
Manuela Parietti, Matías Javier Merlo, Jorge Alejandro Etchegoin   +2 more
openaire   +3 more sources