Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants
Rift Valley fever (RVF) is a mosquito-borne disease mostly affecting wild and domestic ruminants. It is widespread in Africa, with spillovers in the Arab Peninsula and the southwestern Indian Ocean. Although RVF has been circulating in West Africa for more than 30 years, its epidemiology is still not clearly understood. In 2013, an RVF outbreak hit Senegal in new areas that weren't ever affected before. To assess the extent of the spread of RVF virus, a national serological survey was implemented in young small ruminants (6–18 months old), between November 2014 and January 2015 (after the rainy season) in 139 villages. Additionally, the drivers of this spread were identified. For this purpose, we used a beta-binomial ( ) logistic regression model. An Integrated Nested Laplace Approximation (INLA) approach was used to fit the spatial model. Lower cumulative rainfall, and higher accessibility were both associated with a higher RVFV seroprevalence. The spatial patterns of fitted RVFV seroprevalence pointed densely populated areas of western Senegal as being at higher risk of RVFV infection in small ruminants than rural or southeastern areas. Thus, because slaughtering infected animals and processing their fresh meat is an important RVFV transmission route for humans, more human populations might have been exposed to RVFV during the 2013–2014 outbreak than in previous outbreaks in Senegal.
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Language: | eng |
Subjects: | L73 - Maladies des animaux, fièvre de la Vallée du Rift, sérologie, petits ruminants, surveillance épidémiologique, http://aims.fao.org/aos/agrovoc/c_b08d44fd, http://aims.fao.org/aos/agrovoc/c_27081, http://aims.fao.org/aos/agrovoc/c_32579, http://aims.fao.org/aos/agrovoc/c_16411, http://aims.fao.org/aos/agrovoc/c_6970, |
Online Access: | http://agritrop.cirad.fr/603052/ http://agritrop.cirad.fr/603052/1/Publi%20dentification%20of%20drivers%20of%20Rift%20Valley%20fever%20Senegal%20PlosNTD_2022.pdf |
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dig-cirad-fr-6030522024-01-29T19:01:50Z http://agritrop.cirad.fr/603052/ http://agritrop.cirad.fr/603052/ Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants. Seck Ismaïla, Lo Modou Moustapha, Gueye Fall Assane, Diop Mariame, Ciss Mamadou, Cetre-Sossah Catherine, Faye Coumba, Lo Mbargou, Gaye Adji Mareme, Coste Caroline, Squarzoni Diaw Cécile, Alambedji Rianatou Bada, Sall Baba, Apolloni Andrea, Lancelot Renaud. 2022. PLoS Neglected Tropical Diseases, 16 (2):e0010024, 13 p.https://doi.org/10.1371/journal.pntd.0010024 <https://doi.org/10.1371/journal.pntd.0010024> Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants Seck, Ismaïla Lo, Modou Moustapha Gueye Fall, Assane Diop, Mariame Ciss, Mamadou Cetre-Sossah, Catherine Faye, Coumba Lo, Mbargou Gaye, Adji Mareme Coste, Caroline Squarzoni Diaw, Cécile Alambedji, Rianatou Bada Sall, Baba Apolloni, Andrea Lancelot, Renaud eng 2022 PLoS Neglected Tropical Diseases L73 - Maladies des animaux fièvre de la Vallée du Rift sérologie petits ruminants surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_b08d44fd http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_32579 http://aims.fao.org/aos/agrovoc/c_16411 Sénégal http://aims.fao.org/aos/agrovoc/c_6970 Rift Valley fever (RVF) is a mosquito-borne disease mostly affecting wild and domestic ruminants. It is widespread in Africa, with spillovers in the Arab Peninsula and the southwestern Indian Ocean. Although RVF has been circulating in West Africa for more than 30 years, its epidemiology is still not clearly understood. In 2013, an RVF outbreak hit Senegal in new areas that weren't ever affected before. To assess the extent of the spread of RVF virus, a national serological survey was implemented in young small ruminants (6–18 months old), between November 2014 and January 2015 (after the rainy season) in 139 villages. Additionally, the drivers of this spread were identified. For this purpose, we used a beta-binomial ( ) logistic regression model. An Integrated Nested Laplace Approximation (INLA) approach was used to fit the spatial model. Lower cumulative rainfall, and higher accessibility were both associated with a higher RVFV seroprevalence. The spatial patterns of fitted RVFV seroprevalence pointed densely populated areas of western Senegal as being at higher risk of RVFV infection in small ruminants than rural or southeastern areas. Thus, because slaughtering infected animals and processing their fresh meat is an important RVFV transmission route for humans, more human populations might have been exposed to RVFV during the 2013–2014 outbreak than in previous outbreaks in Senegal. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/603052/1/Publi%20dentification%20of%20drivers%20of%20Rift%20Valley%20fever%20Senegal%20PlosNTD_2022.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.1371/journal.pntd.0010024 10.1371/journal.pntd.0010024 info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pntd.0010024 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1371/journal.pntd.0010024 info:eu-repo/semantics/dataset/purl/https://figshare.com/articles/journal_contribution/Drivers_of_the_local_RVFV_cycle_considered_in_modelling_the_RVFV_seroprevalence_in_small_ruminants_after_the_rainy_season_2014_in_Senegal_/19110798 |
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L73 - Maladies des animaux fièvre de la Vallée du Rift sérologie petits ruminants surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_b08d44fd http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_32579 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6970 L73 - Maladies des animaux fièvre de la Vallée du Rift sérologie petits ruminants surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_b08d44fd http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_32579 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6970 |
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L73 - Maladies des animaux fièvre de la Vallée du Rift sérologie petits ruminants surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_b08d44fd http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_32579 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6970 L73 - Maladies des animaux fièvre de la Vallée du Rift sérologie petits ruminants surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_b08d44fd http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_32579 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6970 Seck, Ismaïla Lo, Modou Moustapha Gueye Fall, Assane Diop, Mariame Ciss, Mamadou Cetre-Sossah, Catherine Faye, Coumba Lo, Mbargou Gaye, Adji Mareme Coste, Caroline Squarzoni Diaw, Cécile Alambedji, Rianatou Bada Sall, Baba Apolloni, Andrea Lancelot, Renaud Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants |
description |
Rift Valley fever (RVF) is a mosquito-borne disease mostly affecting wild and domestic ruminants. It is widespread in Africa, with spillovers in the Arab Peninsula and the southwestern Indian Ocean. Although RVF has been circulating in West Africa for more than 30 years, its epidemiology is still not clearly understood. In 2013, an RVF outbreak hit Senegal in new areas that weren't ever affected before. To assess the extent of the spread of RVF virus, a national serological survey was implemented in young small ruminants (6–18 months old), between November 2014 and January 2015 (after the rainy season) in 139 villages. Additionally, the drivers of this spread were identified. For this purpose, we used a beta-binomial ( ) logistic regression model. An Integrated Nested Laplace Approximation (INLA) approach was used to fit the spatial model. Lower cumulative rainfall, and higher accessibility were both associated with a higher RVFV seroprevalence. The spatial patterns of fitted RVFV seroprevalence pointed densely populated areas of western Senegal as being at higher risk of RVFV infection in small ruminants than rural or southeastern areas. Thus, because slaughtering infected animals and processing their fresh meat is an important RVFV transmission route for humans, more human populations might have been exposed to RVFV during the 2013–2014 outbreak than in previous outbreaks in Senegal. |
format |
article |
topic_facet |
L73 - Maladies des animaux fièvre de la Vallée du Rift sérologie petits ruminants surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_b08d44fd http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_32579 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6970 |
author |
Seck, Ismaïla Lo, Modou Moustapha Gueye Fall, Assane Diop, Mariame Ciss, Mamadou Cetre-Sossah, Catherine Faye, Coumba Lo, Mbargou Gaye, Adji Mareme Coste, Caroline Squarzoni Diaw, Cécile Alambedji, Rianatou Bada Sall, Baba Apolloni, Andrea Lancelot, Renaud |
author_facet |
Seck, Ismaïla Lo, Modou Moustapha Gueye Fall, Assane Diop, Mariame Ciss, Mamadou Cetre-Sossah, Catherine Faye, Coumba Lo, Mbargou Gaye, Adji Mareme Coste, Caroline Squarzoni Diaw, Cécile Alambedji, Rianatou Bada Sall, Baba Apolloni, Andrea Lancelot, Renaud |
author_sort |
Seck, Ismaïla |
title |
Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants |
title_short |
Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants |
title_full |
Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants |
title_fullStr |
Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants |
title_full_unstemmed |
Identification of drivers of Rift Valley fever after the 2013–14 outbreak in Senegal using serological data in small ruminants |
title_sort |
identification of drivers of rift valley fever after the 2013–14 outbreak in senegal using serological data in small ruminants |
url |
http://agritrop.cirad.fr/603052/ http://agritrop.cirad.fr/603052/1/Publi%20dentification%20of%20drivers%20of%20Rift%20Valley%20fever%20Senegal%20PlosNTD_2022.pdf |
work_keys_str_mv |
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