Rift Valley Fever during Rainy Seasons, Madagascar, 2008 and 2009

Andriamandimby, Soa Fy; Randrianarivo-Solofoniaina, Armand Eugène; Jeanmaire, Elisabeth M.; Ravololomanana, Lisette; Razafimanantsoa, Lanto Tiana; Rakotojoelinandrasana, Tsanta; Razainirina, Josette; Hoffmann, Jonathan; Ravalohery, Jean-Pierre; Rafisandratantsoa, Jean-Théophile; Rollin, Pierre E.; Reynes, Jean-Marc

doi:10.3201/eid1606.091266

Cited by 104 publications

(123 citation statements)

References 15 publications

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“…10,11 Twenty years later, in 2008 and 2009, an RVF outbreak was reported in several regions of the island with virus detection and isolation in mosquitoes, humans, and livestock. 4,9 As supporting evidence, anti-RVFV (immunoglobulin M [IgM] and IgG) antibodies have been detected in livestock and humans during periods between virus outbreaks. 12,13 These results suggest a silent but continuous circulation of the virus in livestock.…”

Section: History Of Rvf Occurrence In Madagascarmentioning

confidence: 95%

“…4 The highest RVFV prevalence rates were observed in livestock in the western and northern domains. 6 The suggested RVFV candidates vectors (An.…”

Section: Is It Possible To Identify Rvf Risk Areas In Madagascar?mentioning

confidence: 99%

“…12 These differences might explain regional differences in RVFV prevalence and outbreaks. 4,6 RVF circulation and occurrences generally happen during the wet and warm season, 4 which correlates with the period of highest mosquito density. 9,15,12 This increase in mosquito vector density is caused by the creation and maintenance of different breeding sites.…”

Section: Risk Factors Associated With Mosquito Populationsmentioning

confidence: 99%

“…3 A recent RVF outbreak that occurred in Madagascar was probably associated with infected domestic animals imported from east Africa. 4,5 Another study suggested that this outbreak most likely originated from an endemic cycle localized in southern Madagascar, where virus circulation may occur annually. 6 Although not quantified, it is possible that these two mechanisms co-occur in Madagascar, with a recurrent introduction that helps RVFV maintenance and recirculation in the endemic cycle.…”

Section: Introductionmentioning

confidence: 99%

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A Review of Mosquitoes Associated with Rift Valley Fever Virus in Madagascar

Tantely¹,

Boyer²,

Fontenille³

2015

The American Journal of Tropical Medicine and Hygiene

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Abstract. Rift Valley fever (RVF) is a viral zoonotic disease occurring throughout Africa, the Arabian Peninsula, and Madagascar. The disease is caused by a Phlebovirus (RVF virus [RVFV]) transmitted to vertebrate hosts through the bite of infected mosquitoes. In Madagascar, the first RVFV circulation was reported in 1979 based on detection in mosquitoes but without epidemic episode. Subsequently, two outbreaks occurred: the first along the east coast and in the central highlands in 1990 and 1991 and the most recent along the northern and eastern coasts and in the central highlands in 2008 and 2009. Despite the presence of 24 mosquitoes species potentially associated with RVFV transmission in Madagascar, little associated entomological information is available. In this review, we list the RVFV vector, Culex antennatus, as well as other taxa as candidate vector species. We discuss risk factors from an entomological perspective for the re-emergence of RVF in Madagascar.

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Section: History Of Rvf Occurrence In Madagascarmentioning

confidence: 95%

“…4 The highest RVFV prevalence rates were observed in livestock in the western and northern domains. 6 The suggested RVFV candidates vectors (An.…”

Section: Is It Possible To Identify Rvf Risk Areas In Madagascar?mentioning

confidence: 99%

Section: Risk Factors Associated With Mosquito Populationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Review of Mosquitoes Associated with Rift Valley Fever Virus in Madagascar

Tantely¹,

Boyer²,

Fontenille³

2015

The American Journal of Tropical Medicine and Hygiene

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“…It is transmitted mostly between ruminants by the bites of mosquitoes of various genera (Table 4), for example Aedes, Culex and Anopheles [34], but humans can also be infected [52]. …”

Section: Rift Valley Fevermentioning

confidence: 99%

Infectious Disease Research—What Role Is There for Hydrologists?

Heinrich¹,

Bach²

2017

JWARP

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Numerous virulent and widespread diseases are related to water. The transmission and outbreak of water-related diseases are closely coupled to their hydrological environment. Changes in this environment and the associated hydrological processes may affect the occurrence and virulence of waterrelated diseases. Environmental changes can be manifold, including e.g. climate and land use, agricultural management or urbanization. Water fluxes and storages play a dominant role in describing disease outbreak, transmission and transport. New land cover types often alter landscape scale water storages. If the effects of changes could be better understood, predictions about the distribution, emergence or outbreak of water-related diseases would be possible. Furthermore, the collaboration of experts from different disciplines is essential for accurate spatial and temporal prediction of water-related disease outbreaks. Here we review the current state of knowledge of waterrelated diseases and present a general classification of these diseases, followed by a discussion of their major drivers. This review focuses particularly on hydrologists and how they can contribute with their understanding of hydrological processes.

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