<i>Mastomys natalensi</i>s and Lassa Fever, West Africa

Lecompte, Émilie; Fichet‐Calvet, Elisabeth; Daffis, Stéphane; Koulémou, Kékoura; Sylla, O.; Kourouma, Fodé; Doré, Amadou; Soropogui, Barré; Анискин, В. М.; Allali, Bernard; Kan, Stéphane Kouassi; Lalis, Aude; Koivogui, Lamine; Günther, Stephan; Denys, Christiane; Meulen, Jan ter

doi:10.3201/eid1212.060812

Cited by 197 publications

(224 citation statements)

References 13 publications

(22 reference statements)

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“…Roche (1971) found P. tullbergi in Seredou, Macenta (Forest Guinea) and Gautun et al (1986) suggested the probable presence in the Nimba of both P. tullbergi and P. rostratus. Lecompte et al (2006) reported the presence of P. rostratus in the Faranah zone. Ziegler et al (2002) reported the presence of P. rostratus and P. jacksoni in Upper Niger National Park.…”

Section: Mus Musculus Linnaeus 1758mentioning

confidence: 99%

“…In Ivory Coast, M. minutoides was reported to have 2n532 and 34 due to a Robertsonian fusion/fission polymorphism (Adiopodoumé, Bouaké) that is common in the species. A specimen from northeastern Guinea (Kodoko locality) and another from Tanganya (close to Faranah) were described as reservoirs of LCVMH virus and the specimen from Tanganya (TA 777) attributed to M. minutoides displayed a 2N532 and NFa532 (Lecompte et al 2006). This species is also known from Kenya, S. Africa (type locality: Cape) and Tanzania, and the present finding would correspond to the western margin of the species distribution because S. Senegal and S. Mali have yielded M. musculoides and M. haussa and/or M. mattheyi (Veyrunes et al 2005).…”

Section: Species Assignation and Taxonomic Assessmentmentioning

confidence: 99%

“…Using its exceptional ability to adapt and reproduce, this rodent is generally found in all habitats from houses to forests Denys et al 2005). It also inhabits crop fields and acts as a reservoir host for arenavirus and other zoonoses (Hubert & Adam 1985;Leirs et al 1996; Lecompte et al 2006). Similarly, other rodents such as Arvicanthis or Mus (Nannomys) spp.…”

Section: Introductionmentioning

confidence: 99%

“…The identification of these synanthropic species may be difficult due to the existence of numerous sibling species (Taylor 2000;Lecompte et al 2005aLecompte et al , 2006: one of these synanthropic rodents, the multimammate rat Mastomys is the dominant genus of west African rodent communities (Duplantier & Granjon 1988;Granjon et al 2004;Denys et al 2005). Using its exceptional ability to adapt and reproduce, this rodent is generally found in all habitats from houses to forests Denys et al 2005).…”

Section: Introductionmentioning

confidence: 99%

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New data on the taxonomy and distribution of Rodentia (Mammalia) from the western and coastal regions of Guinea West Africa

Denys¹,

Lalis²,

Анискин

et al. 2009

Italian Journal of Zoology

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We compiled the first taxonomic inventory of rodents inhabiting the region from northwestern Guinea to coastal Guinea and this enabled an improved understanding of the rodent fauna of this unexplored region at the western margin of the guineo-congolese forest block. Through standard cytogenetic and morphological analyses we described the presence of two sibling species of the genus Mastomys in West Africa. We report here the first records for Guinea of Arvicanthis ansorgei and M. mattheyi. Our data indicated an extension of the known distribution of Lemniscomys striatus to include the western region of the range of Lophuromys cf. sikapusi. A comparison between southern Senegal, southern Mali, Ivory Coast and eastern Guinea assemblages shows some differences in the rodents between eastern and western Guinea as well as with the surrounding countries. It appears that coastal Guinea could correspond to a transition zone between forest and savanna but this region appears to be ecologically highly degraded in terms of its small mammal communities. Rattus rattus is found in all sampled localities but Mus musculus is restricted to one locality where it was the dominant species of the assemblage. Our study highlights the importance of surveys of rodent biodiversity in unexplored zones.

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Section: Mus Musculus Linnaeus 1758mentioning

confidence: 99%

Section: Species Assignation and Taxonomic Assessmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

New data on the taxonomy and distribution of Rodentia (Mammalia) from the western and coastal regions of Guinea West Africa

Denys¹,

Lalis²,

Анискин

et al. 2009

Italian Journal of Zoology

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“…They are known as major pests for crops and are reservoirs for several pathogenic agents (for example, Lassa fever virus: Lecompte et al, 2006). Pericentric inversions were proposed to have been pivotal in the evolution of the genus (Britton-Davidian et al, 1995;Volobouev et al, 2001), potentially driving speciation (Volobouev et al, 2001(Volobouev et al, , 2002.…”

Section: Introductionmentioning

confidence: 99%

Geographic patterns of inversion polymorphisms in a wild African rodent, Mastomys erythroleucus

et al. 2009

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By suppressing recombination and reducing gene flow, chromosome inversions favor the capture and protection of advantageous allelic combinations, leading to adaptive polymorphisms. However, studies in non-model species remain scarce. Here we investigate the distribution of inversion polymorphisms in the multimammate rat Mastomys erythroleucus in West Africa. More than 270 individuals from 52 localities were karyotyped using G-bands and showed widespread polymorphisms involving four chromosome pairs. No significant deviations from Hardy-Weinberg equilibrium were observed either through space or time, nor were differences retrieved in viability or sex contribution between cytotypes. The distribution of chromosomal variation, however, showed perfect congruence with that of mtDNAbased phylogeographic clades. Thus, inversion diversity patterns in M. erythroleucus appeared more related to historical and/or demographic processes than to climatebased adaptive features. Using cross-species chromosome painting and G-banding analyses to identify homologous chromosomes in related out-group species, we proposed a phylogenetic scenario that involves ancestral-shared polymorphisms and subsequent lineage sorting during expansion/contraction of West African savannas. Our data suggest that long-standing inversion polymorphisms may act as regions in which adaptation genes may accumulate (nucleation model).

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Lassa Fever Virus

Garry

2014

Encyclopedia of Life Sciences

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Lassa virus, a member of the Arenaviridae family, is an enveloped virus with a bisegmented, linear, single‐stranded ribonucleic acid genome. Infection with Lassa virus can result in a range of outcomes from a mild or asymptomatic infection to Lassa fever, a severe and often fatal viral haemorrhagic fever. Human infection with Lassa virus occurs through contact with the reservoir Mastomys natalensis or infected humans. There are an estimated 300 000–500 000 cases of Lassa fever in West Africa each year, with most recorded cases occurring in Sierra Leone and Nigeria. Presently, there is no licensed vaccine or immunotherapy available for preventing or treating this disease. Although the antiviral drug ribavirin can be beneficial, it must be administered at an early stage of infection to successfully alter the disease outcome, thereby limiting its utility. Key Concepts: Lassa virus, a member of the Arenaviridae family, is the aetiologic agent of Lassa fever. Infection with Lassa virus can result in a range of outcomes from a mild or asymptomatic infection to severe and often fatal viral haemorrhagic fever. Signs and symptoms of Lassa fever are highly variable, which challenges early diagnosis. Lassa virus has an enveloped virion with a bisegmented, linear, single‐stranded ribonucleic acid genome. The Lassa virus virion contains nucleoprotein NP, zinc protein Z, glycoproteins GP1 and GP2 and an unusually long and stable signal peptide SSP. Human infection with Lassa virus occurs through contact with its reservoir Mastomys natalensis or infected humans. An estimated 300 000–500 000 cases of Lassa fever occur in West Africa each year, with most recorded cases occurring in Sierra Leone and Nigeria. No licensed vaccine or immunotherapy is presently available for preventing or treating Lassa fever. The antiviral drug ribavirin can be beneficial, but must be administered early, limiting its utility.

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Mastomys natalensis and Lassa Fever, West Africa

Cited by 197 publications

References 13 publications

New data on the taxonomy and distribution of Rodentia (Mammalia) from the western and coastal regions of Guinea West Africa

New data on the taxonomy and distribution of Rodentia (Mammalia) from the western and coastal regions of Guinea West Africa

Geographic patterns of inversion polymorphisms in a wild African rodent, Mastomys erythroleucus

Lassa Fever Virus

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