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Toxoplasmosis seroprevalence in urban rodents: a survey in Niamey, Niger.
Mem Inst Oswaldo Cruz. 2013 Jun; 108(4):399-407.MI

Abstract

A serological survey of Toxoplasma gondii was conducted on 766 domestic and peridomestic rodents from 46 trapping sites throughout the city of Niamey, Niger. A low seroprevalence was found over the whole town with only 1.96% of the rodents found seropositive. However, differences between species were important, ranging from less than 2% in truly commensal Mastomys natalensis, Rattus rattus and Mus musculus, while garden-associated Arvicanthis niloticus displayed 9.1% of seropositive individuals. This is in line with previous studies on tropical rodents--that we reviewed here--which altogether show that Toxoplasma seroprevalence in rodent is highly variable, depending on many factors such as locality and/or species. Moreover, although we were 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. This would deserve to be further scrutinised since intra-city irrigated cultures are extending in Niamey, thus potentially increasing Toxoplasma circulation in this yet semi-arid region. As far as we are aware of, our study is one of the rare surveys of its kind performed in Sub-Saharan Africa and the first one ever conducted in the Sahel.

Authors+Show Affiliations

Laboratoire de Parasitologie-Mycologie, Faculté de Médecine, Université de Limoges, Unité Mixte de Recherche 1094, Neuroépidémiologie Tropicale, Institut National de la Santé et de la Recherche Médicale, Limoges, France. aurelien.mercier@pasteur.frNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23828008

Citation

Mercier, Aurélien, et al. "Toxoplasmosis Seroprevalence in Urban Rodents: a Survey in Niamey, Niger." Memorias Do Instituto Oswaldo Cruz, vol. 108, no. 4, 2013, pp. 399-407.
Mercier A, Garba M, Bonnabau H, et al. Toxoplasmosis seroprevalence in urban rodents: a survey in Niamey, Niger. Mem Inst Oswaldo Cruz. 2013;108(4):399-407.
Mercier, A., Garba, M., Bonnabau, H., Kane, M., Rossi, J. P., Dardé, M. L., & Dobigny, G. (2013). Toxoplasmosis seroprevalence in urban rodents: a survey in Niamey, Niger. Memorias Do Instituto Oswaldo Cruz, 108(4), 399-407. https://doi.org/10.1590/S0074-0276108042013002
Mercier A, et al. Toxoplasmosis Seroprevalence in Urban Rodents: a Survey in Niamey, Niger. Mem Inst Oswaldo Cruz. 2013;108(4):399-407. PubMed PMID: 23828008.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Toxoplasmosis seroprevalence in urban rodents: a survey in Niamey, Niger. AU - Mercier,Aurélien, AU - Garba,Madougou, AU - Bonnabau,Henri, AU - Kane,Mamadou, AU - Rossi,Jean-Pierre, AU - Dardé,Marie-Laure, AU - Dobigny,Gauthier, PY - 2012/11/21/received PY - 2013/04/12/accepted PY - 2013/7/6/entrez PY - 2013/7/6/pubmed PY - 2014/6/24/medline SP - 399 EP - 407 JF - Memorias do Instituto Oswaldo Cruz JO - Mem Inst Oswaldo Cruz VL - 108 IS - 4 N2 - A serological survey of Toxoplasma gondii was conducted on 766 domestic and peridomestic rodents from 46 trapping sites throughout the city of Niamey, Niger. A low seroprevalence was found over the whole town with only 1.96% of the rodents found seropositive. However, differences between species were important, ranging from less than 2% in truly commensal Mastomys natalensis, Rattus rattus and Mus musculus, while garden-associated Arvicanthis niloticus displayed 9.1% of seropositive individuals. This is in line with previous studies on tropical rodents--that we reviewed here--which altogether show that Toxoplasma seroprevalence in rodent is highly variable, depending on many factors such as locality and/or species. Moreover, although we were 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. This would deserve to be further scrutinised since intra-city irrigated cultures are extending in Niamey, thus potentially increasing Toxoplasma circulation in this yet semi-arid region. As far as we are aware of, our study is one of the rare surveys of its kind performed in Sub-Saharan Africa and the first one ever conducted in the Sahel. SN - 1678-8060 UR - https://www.unboundmedicine.com/medline/citation/23828008/Toxoplasmosis_seroprevalence_in_urban_rodents:_a_survey_in_Niamey_Niger_ L2 - https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762013000400399&lng=en&nrm=iso&tlng=en DB - PRIME DP - Unbound Medicine ER -