Calodium hepaticum (Nematoda: Capillariidae) in wild rodent populations from Argentina

A survey of wild-rodent populations has revealed that murine norovirus (MNV) is present and diverse in wild-house mice Mus musculus. This virus is genetically similar to MNV infecting show mice and previously described variants circulating in laboratory mice. The detection of MNV in wild-mouse populations suggests that MNV infection of laboratory mice and show mice (from which laboratory mice are derived) derives from contact with or their origins from wild-mouse progenitors. The survey additionally identified frequent infection of wood mice (Apodemus sylvaticus) with genetically divergent variants of MNV. These viruses are distinct from previously described MNV variants, differing by 22–23 % over the complete genome sequence compared with a maximum of 13 % between M. musculus-derived strains. Comparison with other noroviruses reveals that the Apodemus MNV groups with MNV in genogroup V and shares the same overall genome organization, predicted lengths of proteins encoded by ORFs 1–3 and the existence of a conserved alternative reading frame in VP1 encoding a homologue of the MNV ORF4. Different Apodemus MNV isolates were as variable as MNV isolates and showed evidence for inter-isolate recombination. Our observation of species-specific associations of MNV variants in wild populations suggests that murine noroviruses have an ancient origin, a feature that they may share with other norovirus genogroups.

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Investigation and genome characterisation of tatenale hantavirus in wild rodent populations in the United Kingdom

Access Microbiology ◽

10.1099/acmi.ac2019.po0555 ◽

2019 ◽

Vol 1 (1A) ◽

Author(s):

Joseph G Chappell ◽

Theocharis Tsoleridis ◽

C. Patrick McClure ◽

Malcolm Bennett ◽

Rachael E Tarlinton ◽

...

Keyword(s):

United Kingdom ◽

Wild Rodent ◽

The United Kingdom ◽

Rodent Populations

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Cell Cycle Disruption in Wild Rodent Populations as an Endpoint in Detecting Exposure and Effect

Bulletin of Environmental Contamination and Toxicology ◽

10.1007/s001280000021 ◽

2000 ◽

Vol 64 (3) ◽

pp. 448-454 ◽

Cited By ~ 4

Author(s):

J. K. Wickliffe ◽

R. M. Pitts ◽

S. Iverson ◽

J. W. Bickham

Keyword(s):

Cell Cycle ◽

Wild Rodent ◽

Cell Cycle Disruption ◽

Rodent Populations

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Assessment of Akodon cursor (Rodentia, Sigmodontinae) as permissive host to Schistosoma mansoni infection: morphology of adult worms

Acta Parasitologica ◽

10.2478/s11686-011-0018-x ◽

2011 ◽

Vol 56 (2) ◽

Cited By ~ 1

Author(s):

José Machado-Silva ◽

Renata Neves ◽

Rosângela Rodrigues-Silva ◽

Regina Oliveira ◽

Arnaldo Júnior

Keyword(s):

Schistosoma Mansoni ◽

Laser Scanning ◽

Natural Infection ◽

Laser Scanning Confocal Microscopy ◽

Laboratory Mice ◽

Wild Rodent ◽

Permissive Host ◽

Scanning Confocal Microscopy ◽

Parasitic Helminths ◽

Rodent Populations

AbstractThe natural infection with parasitic helminths is common in wild rodent populations. Once such interactions are better understood in the laboratory, it will be more feasible to extend the findings to infected hosts in nature. The flukes recovered from laboratory-infected Akodon cursor at 63 days post-infection were stained with hydrochloric carmine and individually mounted on glass slide as whole-mounts. Light and laser scanning confocal microscopy studies of adult male and female Schistosoma mansoni are reported. The parasites were examined morphologically and biometrically, which was obtained in a digital system for image analysis. Parameters used were: tegument thickness, digestive, excretory and reproductive systems. The overall conclusion of this experiment is that the morphological features of adult worm were similar to laboratory mice. It has been confirmed that the grass mouse is a permissive host to S. mansoni infection.

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New Insights into the Importance of Rodent Populations in a Zoo Ecosystem in the Pathology and Spread of Calodium hepaticum in Primates

Journal of Comparative Pathology ◽

10.1016/j.jcpa.2012.11.044 ◽

2013 ◽

Vol 148 (1) ◽

pp. 56

Author(s):

J. Correia ◽

A. Crespo ◽

R. Noiva ◽

H. Pissarra ◽

T. Fernandes ◽

...

Keyword(s):

Calodium Hepaticum ◽

Rodent Populations

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Space-time clustering of cowpox virus infection in wild rodent populations

Journal of Animal Ecology ◽

10.1111/j.1365-2656.2005.00966.x ◽

2005 ◽

Vol 74 (4) ◽

pp. 647-655 ◽

Cited By ~ 8

Author(s):

DAVID CARSLAKE ◽

MALCOLM BENNETT ◽

KEVIN BOWN ◽

SARAH HAZEL ◽

SANDRA TELFER ◽

...

Keyword(s):

Virus Infection ◽

Space Time ◽

Cowpox Virus ◽

Wild Rodent ◽

Rodent Populations

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Spatial and Temporal Distribution of Rodents During Active and Quiescent Periods in the Plague Focus in Exu, Northeastern Brazil

10.20944/preprints202109.0022.v1 ◽

2021 ◽

Author(s):

Diego Leandro Reis da Silva Fernandes ◽

Matheus Filgueira Bezerra ◽

Bruna Mendes Duarte ◽

Mayara Paes de França Silva ◽

Hadassa de Almeida Souza ◽

...

Keyword(s):

Rattus Rattus ◽

Temporal Distribution ◽

Rodent Species ◽

Northeastern Brazil ◽

Spatial And Temporal Distribution ◽

Wild Rodent ◽

Epidemic Period ◽

In The Wild ◽

Rodent Populations

The plague caused by the Yersinia pestis bacterium is primarily a flea-transmitted zoonosis of rodents that can also be conveyed to humans and other mammals. In this work, we analyzed the spatial and temporal distribution of rodents’ populations during active and quiescent periods of the plague in the municipality of Exu, northeastern Brazil. The geospatial analyses had shown that all rodent species occurred through the whole territory of the municipality with different hotspots for the risk of occurrence of the different species. Important fluctuation in the rodent populations was observed with a reduction in the wild rodent fauna following the end of a plague epidemic period, mostly represented by Necromys lasiurus and increase of the commensally species Rattus rattus. A higher abundance of rats might lead to an increased exposure of humans populations, favoring spillovers of plague and other rodent-borne diseases. Our analysis contributed to further highlight the role of the wild rodent species as the amplifier hosts and of the commensally rats (Rattus rattus) as the preserver hosts on the quiescent period on that transmission infection area.

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Spatial and Temporal Distribution of Rodents during the Epizootic and Enzootic Periods of Plague, with a Focus on Exu, Northeastern Brazil

Tropical Medicine and Infectious Disease ◽

10.3390/tropicalmed6040195 ◽

2021 ◽

Vol 6 (4) ◽

pp. 195

Author(s):

Diego Leandro Reis da Silva Fernandes ◽

Matheus Filgueira Bezerra ◽

Bruna Mendes Duarte ◽

Mayara Paes de França Silva ◽

Hadassa de Almeida Souza ◽

...

Keyword(s):

Rattus Rattus ◽

Temporal Distribution ◽

Rodent Species ◽

Northeastern Brazil ◽

Human Populations ◽

Spatial And Temporal Distribution ◽

Wild Rodent ◽

In The Wild ◽

Rodent Populations

The plague caused by the Yersinia pestis bacterium is primarily a flea-transmitted zoonosis of rodents that can also be conveyed to humans and other mammals. In this work, we analyzed the spatial and temporal distribution of rodent populations during epizootic and enzootic periods of the plague in the municipality of Exu, northeastern Brazil. The geospatial analyses showed that all the rodent species appeared through the whole territory of the municipality, with different occurrence hotspots for the different species. Important fluctuations in the rodent populations were observed, with a reduction in the wild rodent fauna following the end of a plague epizootic period, mostly represented by Necromys lasiurus and an increase in the commensal species Rattus rattus. A higher abundance of rats might lead to an increased exposure of human populations, favoring spillovers of plague and other rodent-borne diseases. Our analysis highlights the role of wild rodent species as amplifier hosts and of commensal rats (R. rattus) as preserver hosts in the enzootic period of a specific transmission infection area.

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