TY - JOUR
T1 - Human and Livestock Surveillance Revealed the Circulation of Rift Valley Fever Virus in Agnam, Northern Senegal, 2021
AU - Mhamadi, Moufid
AU - Badji, Aminata
AU - Barry, Mamadou Aliou
AU - Ndiaye, El Hadji
AU - Gaye, Alioune
AU - Ndiaye, Mignane
AU - Mhamadi, Moundhir
AU - Touré, Cheikh Talibouya
AU - Ndiaye, Oumar
AU - Faye, Babacar
AU - Diop, Boly
AU - Ndiaye, Mamadou
AU - Fall, Mathioro
AU - Diouf, Andy Mahine
AU - Sagne, Samba Niang
AU - Loucoubar, Cheikh
AU - Fausther-Bovendo, Hugues
AU - Ara, Hugues
AU - Sall, Amadou Alpha
AU - Kobinger, Gary
AU - Faye, Ousmane
AU - Diallo, Mawlouth
AU - Faye, Oumar
N1 - Publisher Copyright:
© 2023 by the authors.
PY - 2023/2
Y1 - 2023/2
N2 - The mosquito-borne disease caused by the Rift Valley Fever Virus (RVFV) is a viral hemorrhagic fever that affects humans and animals. In 1987, RVFV emerged in Mauritania, which caused the first RVFV outbreak in West Africa. This outbreak was shortly followed by reported cases in humans and livestock in Senegal. Animal trade practices with neighboring Mauritania suggest northern regions of Senegal are at high risk for RVF. In this study, we aim to conduct a molecular and serological survey of RVFV in humans and livestock in Agnam (northeastern Senegal) by RT-PCR (reverse transcription real-time polymerase chain reaction) and ELISA (Enzyme-Linked Immunosorbent Assay), respectively. Of the two hundred fifty-five human sera, one (0.39%) tested RVFV IgM positive, while fifty-three (20.78%) tested positive for RVFV IgG. For animal monitoring, out of 30 sheep recorded and sampled over the study period, 20 (66.67%) showed seroconversion to RVFV IgG antibodies, notably during the rainy season. The presence of antibodies increased significantly with age in both groups (p < 0.05), as the force of RVF infection (FOI), increased by 16.05% per year for humans and by 80.4% per month for livestock sheep. This study supports the usefulness of setting up a One Health survey for RVF management.
AB - The mosquito-borne disease caused by the Rift Valley Fever Virus (RVFV) is a viral hemorrhagic fever that affects humans and animals. In 1987, RVFV emerged in Mauritania, which caused the first RVFV outbreak in West Africa. This outbreak was shortly followed by reported cases in humans and livestock in Senegal. Animal trade practices with neighboring Mauritania suggest northern regions of Senegal are at high risk for RVF. In this study, we aim to conduct a molecular and serological survey of RVFV in humans and livestock in Agnam (northeastern Senegal) by RT-PCR (reverse transcription real-time polymerase chain reaction) and ELISA (Enzyme-Linked Immunosorbent Assay), respectively. Of the two hundred fifty-five human sera, one (0.39%) tested RVFV IgM positive, while fifty-three (20.78%) tested positive for RVFV IgG. For animal monitoring, out of 30 sheep recorded and sampled over the study period, 20 (66.67%) showed seroconversion to RVFV IgG antibodies, notably during the rainy season. The presence of antibodies increased significantly with age in both groups (p < 0.05), as the force of RVF infection (FOI), increased by 16.05% per year for humans and by 80.4% per month for livestock sheep. This study supports the usefulness of setting up a One Health survey for RVF management.
KW - Rift Valley Fever Virus
KW - humans
KW - livestock
KW - northeastern Senegal
KW - survey
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U2 - 10.3390/tropicalmed8020087
DO - 10.3390/tropicalmed8020087
M3 - Article
C2 - 36828503
AN - SCOPUS:85149207884
SN - 2414-6366
VL - 8
JO - Tropical Medicine and Infectious Disease
JF - Tropical Medicine and Infectious Disease
IS - 2
M1 - 87
ER -