Seroprevalence of Rift valley fever in South African domestic and wild suids (1999-2016).


Journal

Transboundary and emerging diseases
ISSN: 1865-1682
Titre abrégé: Transbound Emerg Dis
Pays: Germany
ID NLM: 101319538

Informations de publication

Date de publication:
Mar 2020
Historique:
received: 18 02 2019
revised: 26 09 2019
accepted: 03 10 2019
pubmed: 28 10 2019
medline: 17 6 2020
entrez: 27 10 2019
Statut: ppublish

Résumé

Rift valley fever (RVF) is a vector-borne viral disease of domestic ruminants, camels and man, characterized by widespread abortions and neonatal deaths in animals, and flu-like symptoms, which can progress to hepatitis and encephalitis in humans. The disease is endemic in Africa, Saudi Arabia and Yemen, and outbreaks occur after periods of high rainfall, or in environments supporting the proliferation of RVF virus (RVFV)-infected mosquito vectors. The domestic and wild animal maintenance hosts of RVFV, which may serve as sources of virus during inter-epidemic periods (IEPs) and contribute to occurrence of sporadic outbreaks, remain unknown, although reports indicate that the African buffalo (Syncerus caffer) may play a role. Due to the close proximity of the habitats of domestic pigs and warthogs to those of known domestic and wild ruminant RVFV maintenance hosts respectively, our study investigated their possible role in the epidemiology of RVF in South Africa by evaluating RVFV exposure and seroconversion in suids. A total of 107 warthog and 3,984 domestic pig sera from 2 and all 9 provinces of South Africa, respectively, were screened for presence of RVFV neutralizing antibodies using the virus neutralization test (VNT). Sero-positivity rates of 1.87% (95% CI: 0.01%-6.9%) and 0.68% (95% CI: 0.49%-1.04%) were observed for warthogs and domestic pigs, respectively, but true prevalence rates, taking test sensitivity and specificity into account, were lower for both groups. There was a strong association between the results of the two groups (χ

Identifiants

pubmed: 31655018
doi: 10.1111/tbed.13402
doi:

Substances chimiques

Antibodies, Neutralizing 0
Antibodies, Viral 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

811-821

Subventions

Organisme : Economic Competitive Support Programme (ECSP) of the South African National Treasury
ID : N/A
Organisme : Joy Liebenberg Trust
ID : N/A
Organisme : Gauteng Department of Agriculture and Rural Development (GDARD)
ID : N/A

Informations de copyright

© 2019 Blackwell Verlag GmbH.

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Auteurs

Baratang Alison Lubisi (BA)

Agricultural Research Council-Onderstepoort Veterinary Institute, Onderstepoort, South Africa.
Department of Zoology & Entomology, Mammal Research Institute, University of Pretoria, Hatfield, South Africa.

Phumudzo Nomicia Ndouvhada (PN)

Agricultural Research Council-Onderstepoort Veterinary Institute, Onderstepoort, South Africa.
Department of Agriculture and Animal Health, College of Agriculture and Environmental Sciences, University of South Africa, Roodepoort, South Africa.

Donald Neiffer (D)

Wildlife Health Sciences, National Zoological Park, Smithsonian Conservation Biology Institute, Washington, DC, USA.

Mary Louise Penrith (ML)

Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa.

Donald-Ray Sibanda (DR)

Department of Agriculture and Animal Health, College of Agriculture and Environmental Sciences, University of South Africa, Roodepoort, South Africa.

Armanda Bastos (A)

Department of Zoology & Entomology, Mammal Research Institute, University of Pretoria, Hatfield, South Africa.
Centre for Veterinary Wildlife Studies, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa.

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