Rift Valley fever, Mauritania, 2020: Lessons from a one health approach
Yahya Barry,
Ahmed Elbara,
Mohamed Abdallahi Bollahi,
Ahmed B. Ould El Mamy,
Mokhtar Fall,
Abdellahi Diambar Beyit,
Mariem Seyidna Khayar,
Ba Aliou Demba,
Mohamed Limine Haki,
Ousmane Faye,
Ludovic Plee,
Etienne Bonbon,
Baba Doumbia,
Elena Arsevska,
Catherine Cêtre-Sossah
Affiliations
Yahya Barry
Office National de Recherches et de Développement de l'Élevage et du Pastoralisme (ONARDEP), Nouakchott, Mauritania
Ahmed Elbara
Institut National de Recherches en Santé Publique (INRSP), Nouakchott, Mauritania
Mohamed Abdallahi Bollahi
Institut National de Recherches en Santé Publique (INRSP), Nouakchott, Mauritania
Ahmed B. Ould El Mamy
Office National de Recherches et de Développement de l'Élevage et du Pastoralisme (ONARDEP), Nouakchott, Mauritania
Mokhtar Fall
World Health Organization, Nouakchott, Mauritania
Abdellahi Diambar Beyit
Office National de Recherches et de Développement de l'Élevage et du Pastoralisme (ONARDEP), Nouakchott, Mauritania
Mariem Seyidna Khayar
Office National de Recherches et de Développement de l'Élevage et du Pastoralisme (ONARDEP), Nouakchott, Mauritania
Ba Aliou Demba
Office National de Recherches et de Développement de l'Élevage et du Pastoralisme (ONARDEP), Nouakchott, Mauritania
Mohamed Limine Haki
Office National de Recherches et de Développement de l'Élevage et du Pastoralisme (ONARDEP), Nouakchott, Mauritania
Ousmane Faye
UCAD, Université Cheikh Anta Diop, Dakar, Senegal
Ludovic Plee
Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
Etienne Bonbon
Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
Baba Doumbia
Ministère du Développement Rural, Nouakchott, Mauritania
Elena Arsevska
CIRAD, UMR ASTRE, F 34398 Montpellier, Cedex, France; ASTRE, Montpellier University, CIRAD, INRAE, Montpellier, France
Catherine Cêtre-Sossah
CIRAD, UMR ASTRE, F 34398 Montpellier, Cedex, France; ASTRE, Montpellier University, CIRAD, INRAE, Montpellier, France; Corresponding author at: CIRAD, Campus International de Baillarguet TA A 15/E, 34398 Montpellier, Cedex 5, France.
A new outbreak of Rift Valley fever (RVF) occurred in Mauritania from September to November 2020, involving 78 reported human cases and 186 reported animal cases. Eleven out of the 13 regions of the country were affected by the epidemic, with the highest number of both human and animal cases in Tagant, Assaba and Brakna regions. The most affected animal species in this outbreak was camels, followed by small ruminants. Among the 10 mosquito species caught, 7 species, Culex poicilipes, Cx. quinquefasciatus, Cx. antennatus, Cx. univitattus, Aedes vexans, Mansonia africana and Ma. uniformis, are known to be involved in the transmission of RVF virus. Phylogenetic analyses based on the partial NSs gene revealed close proximity between the human/animal Mauritania 2020 viral strains and the Mauritania 2015/Niger 2016 strains, suggesting re-emergence of the RVF virus in the country since the last reported outbreak in 2015.
