An updated checklist of mosquito species (Diptera: Culicidae) from Madagascar

Tantely, Michaël Luciano; Goff, Gilbert Le; Boyer, Sébastien; Fontenille, Didier

doi:10.1051/parasite/2016018

Cited by 40 publications

(84 citation statements)

References 107 publications

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“…While the existence of wild terrestrial mammals as reservoir of RVF in Madagascar is unlikely37, the vertical transmission has still to be considered. Indeed, vertical transmission has been described in Aedes subgenus Neomelaniconion mosquitoes38 which is present in all Malagasy eco-regions2939. The role of ruminant movements –barter and trade, in RVFV circulation and persistence, has already been shown at a local scale in a pilot area in the Highlands193340.…”

Section: Discussionmentioning

confidence: 99%

Reconstruction of Rift Valley fever transmission dynamics in Madagascar: estimation of force of infection from seroprevalence surveys using Bayesian modelling

Olive

Grosbois²,

Tran³

et al. 2017

Sci Rep

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The force of infection (FOI) is one of the key parameters describing the dynamics of transmission of vector-borne diseases. Following the occurrence of two major outbreaks of Rift Valley fever (RVF) in Madagascar in 1990–91 and 2008–09, recent studies suggest that the pattern of RVF virus (RVFV) transmission differed among the four main eco-regions (East, Highlands, North-West and South-West). Using Bayesian hierarchical models fitted to serological data from cattle of known age collected during two surveys (2008 and 2014), we estimated RVF FOI and described its variations over time and space in Madagascar. We show that the patterns of RVFV transmission strongly differed among the eco-regions. In the North-West and Highlands regions, these patterns were synchronous with a high intensity in mid-2007/mid-2008. In the East and South-West, the peaks of transmission were later, between mid-2008 and mid-2010. In the warm and humid northwestern eco-region favorable to mosquito populations, RVFV is probably transmitted all year-long at low-level during inter-epizootic period allowing its maintenance and being regularly introduced in the Highlands through ruminant trade. The RVF surveillance of animals of the northwestern region could be used as an early warning indicator of an increased risk of RVF outbreak in Madagascar.

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Section: Discussionmentioning

confidence: 99%

Reconstruction of Rift Valley fever transmission dynamics in Madagascar: estimation of force of infection from seroprevalence surveys using Bayesian modelling

Olive

Grosbois²,

Tran³

et al. 2017

Sci Rep

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“…In Madagascar, 29 mosquito species of the 235 (12%) described culicid fauna [127] are known in a worldwide context to be associated with WNV infection (Table 1). These species belong to five genera ( Aedeomyia , Aedes , Anopheles , Culex , and Mansonia ).…”

Section: Mosquito Wnv Vectors In Madagascarmentioning

confidence: 99%

“…tritaeniorhynchus MadagascarDec-82ForestGF* Ab10–90%10 0.79 –10 2.87 SMICLD50/mL100%10 −1.06 SMICLD50/mLMV[34][14][48] Cx. univittatus MadagascarFeb-86Forest egde GFAb51%10 5.8–7.2 PFU/mL100%7.0 log 10 CPD50/mLMV[34][127][25, 70] Cx. vansomereni R42%10 5.8–7.2 PFU/mL17–100%[129][70] Cx.…”

Section: Mosquito Wnv Vectors In Madagascarmentioning

confidence: 99%

“…hispida SenegalARPV[131][127] Mi. splendens SenegalunknownRPV[131][127]In bold are mosquitoes found naturally infected with WNV in Madagascar.+This species was not specified and is morphologically close to Culex scottii [34]. …”

Section: Mosquito Wnv Vectors In Madagascarmentioning

confidence: 99%

“…univittatus , and Ma. uniformis are abundant in Madagascar but exhibit different host preferences [127]. Culex quinquefasciatus and Ae.…”

Section: Mosquito Wnv Vectors In Madagascarmentioning

confidence: 99%

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Review of West Nile virus circulation and outbreak risk in Madagascar: Entomological and ornithological perspectives

2016

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West Nile fever (WNF) is a zoonotic disease, occurring nearly globally. In Madagascar, West Nile virus (WNV) was first detected in 1978 from wild birds and the virus is currently distributed across the island, but no epidemic or epizootic period has been recorded. One fatal human case of WNV infection was reported in 2011, suggesting a “tip of the iceberg” phenomenon of a possible WNF epidemic/epizootic on the island. The main objective of this literature-based survey is to review patterns of WNV circulation in Madagascar from the entomological and ornithological points of view. Among the 235 mosquito species described from Madagascar, 29 species are widely associated with WNV infection; 16 of them are found naturally infected with WNV on the island and categorized into major, candidate, and potential vectors of WNV according to their vector capacity. This study upholds the hypothesis that WNV enzooticity is independent of annual movements of migratory birds passing through Madagascar. Moreover, the lack of regular migratory bird flux between Africa and Madagascar would reduce the probability of transmission and the subsequent reintroduction of the virus into locally occurring mosquito species. Given that Palearctic migratory birds are strongly implicated in the transmission of WNV, we highlight notable differences in the movements and species diversity of these birds in Madagascar as compared to eastern and northern Africa. Risk factors from this two-pronged approach are presented for the emergence of WNF outbreak.

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Differences in infection patterns of vector-borne blood-stage parasites of sympatric Malagasy primate species (Microcebus murinus, M. ravelobensis)

Klein¹,

Strübe

Radespiel³

et al. 2019

International Journal for Parasitology: Parasites and Wildlife

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The dynamic relationship of vector-borne parasites, arthropod vectors and their hosts is prone to change under the influence of climate change, global integration, shifting demographics and deforestation. It is therefore essential to better understand parasitism in wildlife populations, including parasites transmitted by blood-feeding vectors, and explore host range and heterogeneity of parasitic infections. We investigated Giemsa stained blood smears of two sympatric Malagasy primate species ( Microcebus murinus : 184 samples from 69 individuals and M. ravelobensis : 264 samples from 91 individuals) for blood-stage parasites and tested for a potential influence of host species, sex, body mass and sampling month on blood-stage parasite prevalence and infection intensity. No protozoan parasites were detected in either host species. A host-specific difference was observed in filarial nematode infections, with higher risk of infection in M. murinus (prevalence 30.43%), than in M. ravelobensis (prevalence 6.59%), which may be explained by differences in host behavior and/or immune competence, linked to the period of host-parasite coevolution. Neither sex nor sampling month influenced infection prevalence or intensity significantly. We did not observe a negative effect of microfilarial infections on host fitness when taking body mass as a proxy. Our results support the hypothesis of a long-term evolutionary adaptation of hosts and parasites, leading to persistent infection with low morbidity. Morphological and molecular analyses indicate the finding of a new species, “ Lemurfilaria lemuris ”. Genetic analysis furthermore showed >99% sequence identity with microfilariae described from a sympatric, larger-bodied lemur species of a different genus, suggesting low host-specificity of the detected filariae and pathogen transmission across genus boundaries. Findings contribute to a more comprehensive picture of vector-borne diseases of Malagasy lemurs.

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An updated checklist of mosquito species (Diptera: Culicidae) from Madagascar

Cited by 40 publications

References 107 publications

Reconstruction of Rift Valley fever transmission dynamics in Madagascar: estimation of force of infection from seroprevalence surveys using Bayesian modelling

Reconstruction of Rift Valley fever transmission dynamics in Madagascar: estimation of force of infection from seroprevalence surveys using Bayesian modelling

Review of West Nile virus circulation and outbreak risk in Madagascar: Entomological and ornithological perspectives

Differences in infection patterns of vector-borne blood-stage parasites of sympatric Malagasy primate species (Microcebus murinus, M. ravelobensis)

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