The Experts below are selected from a list of 237 Experts worldwide ranked by ideXlab platform
Charlotte Tollenaere - One of the best experts on this subject based on the ideXlab platform.
-
species rattus rattus in the western Indian Ocean, with special emphasis on the colonization history of Madagascar
2010Co-Authors: Soanandrasana Rahelinirina, Jean-marc Duplantier, Carine Brouat, Michel Pascal, Gabriel Mouahid, Herwig Leirs, Charlotte TollenaereAbstract:Aim To describe the phylogeographic patterns of the black rat, rattus rattus, from islands in the western Indian Ocean where the species has been introduced
Lorraine M Mcelhinney - One of the best experts on this subject based on the ideXlab platform.
-
Discovery of hantavirus circulating among rattus rattus in French Mayotte island, Indian Ocean.
Journal of General Virology, 2016Co-Authors: Claudia Filippone, Guillaume Castel, Séverine Murri, Frédérik Beaulieux, Myriam Ermonval, Corinne Jallet, Emma L Wise, Richard J Ellis, Denise A Marston, Lorraine M McelhinneyAbstract:Hantaviruses are emerging zoonotic viruses that cause human diseases. In this study, sera from 642 mammals from La Réunion and Mayotte islands (Indian Ocean) were screened for the presence of hantaviruses by molecular analysis. None of the mammals from La Réunion island was positive, but hantavirus genomic RNA was discovered in 29/160 (18 %) rattus rattus from Mayotte island. The nucleoprotein coding region was sequenced from the liver and spleen of all positive individuals allowing epidemiological and intra-strain variability analyses. Phylogenetic analysis based on complete coding genomic sequences showed that this Murinae-associated hantavirus is a new variant of Thailand virus. Further studies are needed to investigate hantaviruses in rodent hosts and in Haemorrhagic Fever with Renal Syndrome (HFRS) human cases.
Charlotte L Oskam - One of the best experts on this subject based on the ideXlab platform.
-
molecular identification of the trypanosoma herpetosoma lewisi clade in black rats rattus rattus from australia
Parasitology Research, 2020Co-Authors: Siobhon L Egan, Casey L Taylor, Jill M Austen, Peter B Banks, Liisa A Ahlstrom, Una Ryan, Peter J Irwin, Charlotte L OskamAbstract:Invasive rodent species are known hosts for a diverse range of infectious microorganisms and have long been associated with the spread of disease globally. The present study describes molecular evidence for the presence of a Trypanosoma sp. from black rats (rattus rattus) in northern Sydney, Australia. Sequences of the 18S ribosomal RNA (rRNA) locus were obtained in two out of eleven (18%) blood samples with subsequent phylogenetic analysis confirming the identity within the Trypanosoma lewisi clade.
Claudia Filippone - One of the best experts on this subject based on the ideXlab platform.
-
Geographical distribution and relative risk of Anjozorobe virus (Thailand orthohantavirus) infection in black rats (rattus rattus) in Madagascar.
Virology Journal, 2018Co-Authors: Vololoniaina Raharinosy, Marie-marie Olive, Fehivola Mandanirina Andriamiarimanana, Soa Fy Andriamandimby, Jean-pierre Ravalohery, Seta Andriamamonjy, Claudia Filippone, Danielle Aurore Doll Rakoto, Sandra Telfer, Jean-michel HeraudAbstract:Hantavirus infection is a zoonotic disease that is associated with hemorrhagic fever with renal syndrome and cardiopulmonary syndrome in human. Anjozorobe virus, a representative virus of Thailand orthohantavirus (THAIV), was recently discovered from rodents in Anjozorobe-Angavo forest in Madagascar. To assess the circulation of hantavirus at the national level, we carried out a survey of small terrestrial mammals from representative regions of the island and identified environmental factors associated with hantavirus infection. As we were ultimately interested in the potential for human exposure, we focused our research in the peridomestic area. Sampling was achieved in twenty districts of Madagascar, with a rural and urban zone in each district. Animals were trapped from a range of habitats and examined for hantavirus RNA by nested RT-PCR. We also investigated the relationship between hantavirus infection probability in rats and possible risk factors by using Generalized Linear Mixed Models. Overall, 1242 specimens from seven species were collected (rattus rattus, rattus norvegicus, Mus musculus, Suncus murinus, Setifer setosus, Tenrec ecaudatus, Hemicentetes semispinosus). Overall, 12.4% (111/897) of rattus rattus and 1.6% (2/125) of Mus musculus were tested positive for THAIV. Rats captured within houses were less likely to be infected than rats captured in other habitats, whilst rats from sites characterized by high precipitation and relatively low seasonality were more likely to be infected than those from other areas. Older animals were more likely to be infected, with infection probability showing a strong increase with weight. We report widespread distribution of THAIV in the peridomestic rats of Madagascar, with highest prevalence for those living in humid areas. Although the potential risk of infection to human may also be widespread, our results provide a first indication of specific zone with high transmission. Gathered data will be helpful to implement policies for control and prevention of human risk infection.
-
Discovery of hantavirus circulating among rattus rattus in French Mayotte island, Indian Ocean.
Journal of General Virology, 2016Co-Authors: Claudia Filippone, Guillaume Castel, Séverine Murri, Frédérik Beaulieux, Myriam Ermonval, Corinne Jallet, Emma L Wise, Richard J Ellis, Denise A Marston, Lorraine M McelhinneyAbstract:Hantaviruses are emerging zoonotic viruses that cause human diseases. In this study, sera from 642 mammals from La Réunion and Mayotte islands (Indian Ocean) were screened for the presence of hantaviruses by molecular analysis. None of the mammals from La Réunion island was positive, but hantavirus genomic RNA was discovered in 29/160 (18 %) rattus rattus from Mayotte island. The nucleoprotein coding region was sequenced from the liver and spleen of all positive individuals allowing epidemiological and intra-strain variability analyses. Phylogenetic analysis based on complete coding genomic sequences showed that this Murinae-associated hantavirus is a new variant of Thailand virus. Further studies are needed to investigate hantaviruses in rodent hosts and in Haemorrhagic Fever with Renal Syndrome (HFRS) human cases.
Siobhon L Egan - One of the best experts on this subject based on the ideXlab platform.
-
molecular identification of the trypanosoma herpetosoma lewisi clade in black rats rattus rattus from australia
Parasitology Research, 2020Co-Authors: Siobhon L Egan, Casey L Taylor, Jill M Austen, Peter B Banks, Liisa A Ahlstrom, Una Ryan, Peter J Irwin, Charlotte L OskamAbstract:Invasive rodent species are known hosts for a diverse range of infectious microorganisms and have long been associated with the spread of disease globally. The present study describes molecular evidence for the presence of a Trypanosoma sp. from black rats (rattus rattus) in northern Sydney, Australia. Sequences of the 18S ribosomal RNA (rRNA) locus were obtained in two out of eleven (18%) blood samples with subsequent phylogenetic analysis confirming the identity within the Trypanosoma lewisi clade.
