{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T09:31:13Z","timestamp":1785403873517,"version":"3.56.0"},"reference-count":33,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T00:00:00Z","timestamp":1782777600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006021","name":"Direction G\u00e9n\u00e9rale de l\u2019Armement","doi-asserted-by":"crossref","award":["NBC-5-B-2121"],"award-info":[{"award-number":["NBC-5-B-2121"]}],"id":[{"id":"10.13039\/501100006021","id-type":"DOI","asserted-by":"crossref"}]},{"award":["NBC-5-B-2121"],"award-info":[{"award-number":["NBC-5-B-2121"]}],"id":[{"id":"https:\/\/ror.org\/04wsqd844","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Viruses"],"abstract":"<jats:p>Rift Valley fever (RVF) is a mosquito-borne viral zoonosis that causes severe illness in livestock and humans, with significant economic and health repercussions. Mauritania is considered an RVF focus in West Africa. A cross-sectional survey was conducted in 2023 in 12 of Mauritania\u2019s 15 provinces. Serum samples from 849 small ruminants (428 goats and 421 sheep) were analyzed by ELISA for IgG and IgM antibodies against RVF virus. Logistic regression analyses were performed to assess associations between seropositivity and species, age, sex, season, and geographic location. In total, 14.1% of the animals tested were positive for anti-RVFV IgG antibodies. There was no association between anti-RVFV IgG positivity and the ruminant species, the sex, the age and the season. Hodh El Gharbi had the highest seroprevalence (40.5%), followed by Adrar (19.8%) and Tagant (19.7%). The lowest levels were recorded in Tiris Zemmour (2%) and Inchiri (3%). Only two animals tested positive for IgM, suggesting limited recent viral activity. This nationwide survey confirms widespread exposure of small ruminants to RVFV in Mauritania. Strengthening longitudinal serological monitoring and integrating ecological and entomological data within the \u201cOne Health\u201d approach will be essential to preventing future epidemics and protecting animal and human health.<\/jats:p>","DOI":"10.3390\/v18070722","type":"journal-article","created":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:50:37Z","timestamp":1782867037000},"page":"722","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Seroprevalence and Geographical Distribution of Rift Valley Fever in Small Ruminants in Mauritania: Evidence of Endemic Circulation and Regional Risk Hotspots"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-6084-2644","authenticated-orcid":false,"given":"Abdellahi","family":"El Ghassem","sequence":"first","affiliation":[{"name":"Unite de Recherche G\u00e9nomes et Milieux (GEMI), Facult\u00e9 des Sciences et Techniques, Universit\u00e9 de Nouakchott, Nouakchott B.P. 5026, Mauritania"},{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariem","family":"Seyidna Khayar","sequence":"additional","affiliation":[{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariem","family":"Cheikh Ahmed","sequence":"additional","affiliation":[{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ekatrina","family":"Isselmou","sequence":"additional","affiliation":[{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdellahi","family":"Diambar Beyit","sequence":"additional","affiliation":[{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barry","family":"Yahya","sequence":"additional","affiliation":[{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yacoub","family":"Sidi Moctar","sequence":"additional","affiliation":[{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamed","family":"Baba Gueya","sequence":"additional","affiliation":[{"name":"Office National de Recherches et du D\u00e9veloppement de l\u2019\u00c9levage et du Pastoralisme, Nouakchott B.P. 167, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Navaa","family":"Abdelawahab","sequence":"additional","affiliation":[{"name":"Direction des Services V\u00e9t\u00e9rinaires, Nouakchott B.P. 115, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Habiboullah","family":"Habiboullah","sequence":"additional","affiliation":[{"name":"Direction des Services V\u00e9t\u00e9rinaires, Nouakchott B.P. 115, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8872-1774","authenticated-orcid":false,"given":"S\u00e9bastien","family":"Briolant","sequence":"additional","affiliation":[{"name":"Unit\u00e9 Parasitologie et Entomologie, D\u00e9partement Risques Vectoriels, Institut de Recherche Biom\u00e9dicale des Arm\u00e9es (IRBA), 13005 Marseille, France"},{"name":"Unit\u00e9 Mixte de Recherche Risques Infectieux Tropicaux et Microorganismes Emergents, Assistance Publique des H\u00f4pitaux de Marseille, Service de Sant\u00e9 des Arm\u00e9es, Aix Marseille University, 13005 Marseille, France"},{"name":"Institut Hospitalo-Universitaire, M\u00e9diterran\u00e9e Infection, 13005 Marseille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed Bezeid","family":"Ould El Mamy","sequence":"additional","affiliation":[{"name":"Institut Sup\u00e9rieur d\u2019Enseignement Technologique (ISET), Rosso B.P. 172, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali","family":"Ould Mohamed Salem Boukhary","sequence":"additional","affiliation":[{"name":"Unite de Recherche G\u00e9nomes et Milieux (GEMI), Facult\u00e9 des Sciences et Techniques, Universit\u00e9 de Nouakchott, Nouakchott B.P. 5026, Mauritania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"7","DOI":"10.2478\/jvetres-2021-0009","article-title":"Rift Valley Fever\u2014A Growing Threat To Humans and Animals","volume":"65","author":"Rola","year":"2021","journal-title":"J. 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