Species or local environment, what determines the infection of rodents by Toxoplasma gondii?

  title={Species or local environment, what determines the infection of rodents by Toxoplasma gondii?},
  author={C{\'e}cile Gotteland and Yannick Chaval and Isabelle Villena and Maxime Galan and R{\'e}gine Geers and Dominique Aubert and Marie-Lazarine Poulle and Nathalie Charbonnel and Emmanuelle Gilot‐Fromont},
  pages={259 - 268}
SUMMARY Toxoplasmosis is largely present in rural areas but its spatial distribution in this environment remains poorly known. In particular, it is unclear if areas of high density of cats, the only hosts excreting Toxoplasma gondii, constitute foci of high prevalence. To improve our understanding of the spatial distribution of T. gondii in rural areas, we performed a serological survey in rodents from two villages in France. We trapped 710 rodents including commensal rats and meadow or forest… 

Agricultural landscape and spatial distribution of Toxoplasma gondii in rural environment: an agent-based model

The agent-based model provides a useful tool to assess the risk of contamination by T. gondii oocysts at a local scale and determine the most at risk areas and provides a basis to investigate the spatial dynamics of pathogens with an environmental stage.

Prevalence of Toxoplasma gondii infection among small mammals in Tatarstan, Russian Federation

Toxoplasma gondii infection prevalence was evaluated in brain tissues from 474 small mammals captured at 26 trapping points in urban and rural areas of Tatarstan, Russian Federation and showed that the trapping area (rural or urban) significantly contributed to T. gondius positivity.

Diversity of Toxoplasma gondii strains shaped by commensal communities of small mammals.

Prevalence of Toxoplasma gondii in localized populations of Apodemus sylvaticus is linked to population genotype not to population location

There was a significant difference in T. gondii prevalence in the different genotypically derived mouse populations but not between geographically defined populations, which point to either a host genetic/family influence on parasite infection or to parasite vertical transmission.

Seroprevalence of Toxoplasma gondii in commensal rodents sampled across Senegal, West Africa

Seroprevalence in rodents from villages and towns across Senegal was low, averaging 4% in the localities, and higher Toxoplasma serop revalence was found in northern Senegal, a region known to be the heart of pastoral herding in the country.

Global Status of Toxoplasma gondii Seroprevalence in Rodents: A Systematic Review and Meta-Analysis

The present study revealed a relatively low level of T. gondii seroprevalence in rodents; however, if they were the main food source for their predators, they would cause high transmission of the parasite.


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Rats in the city: implications for zoonotic disease risk in an urbanizing world

The results demonstrate that the response to urbanization varies by species at all levels: host, ectoparasite, and microbe, which may lead to increased zoonotic disease risk in a subset of environments across urban and urbanizing landscapes that can be reduced through improved pest management and public health messaging.



Toxoplasmosis seroprevalence in urban rodents: a survey in Niamey, Niger.

Although the study was not able to decipher statistically between habitat or species effect, such a contrast between Nile grass rats and the other rodent species points towards a potentially important role of environmental toxoplasmic infection in this yet semi-arid region.

Rodents as shared indicators for zoonotic parasites of carnivores in urban environments

SUMMARY Rodents are shared intermediate or paratenic hosts for Echinococcus multilocularis, Toxocara spp. and Toxoplasma gondii, and may serve as valuable indicators for assessing the occurrence and

Toxoplasmosis in rodents: ecological survey and first evidences in Thailand.

This survey constitutes the first confirmed serological investigation of T. gondii in rodents in Thailand, and questions the involvement of other carnivores in the life cycle.

Serological observation of Toxoplasma gondii prevalence in Apodemus agrarius, a dominant species of field rodents in Korea.

Direct evidence of the existence of T. gondii in field rodents in Korea is presented and very similar patterns to that obtained using sera of experimentally infected mice with T. Gondii are presented.

Toxoplasmosis in naturally infected rodents in Belgrade, Serbia.

To assess the role of synanthropic rodents in the epidemiology of urban toxoplasmosis, Toxoplasma gondii infection was examined in 144 rats and 12 mice captured using live animal traps in Belgrade city characterized by poor housing and degraded environment.

Prevalence and co-infection of Toxoplasma gondii and Neospora caninum in Apodemus sylvaticus in an area relatively free of cats

The results suggest that cat density may have a lower than expected effect on final prevalence in these ecosystems, where cats play a major role in transmission to secondary mammalian hosts.

Isolation and multilocus genotyping of Toxoplasma gondii in seronegative rodents in Brazil.

Transmission dynamics of Toxoplasma gondii on a pig farm.

  • T. LehmannD. Graham J. Dubey
  • Biology
    Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases
  • 2003

Rats as indicators of the presence and dispersal of pathogens in Cyprus: ectoparasites, parasitic helminths, enteric bacteria, and encephalomyocarditis virus.

Biological material collected from 625 rodents showed that the most widespread pathogens encountered in wild rats were helminth parasites, found in 92 animals, and Salmonella spp.