Risk based serological survey of Rift Valley fever in Tunisia (2017-2018).
Camels
QRA methodology
Rift valley fever
Risk mapping
Small ruminants
Survey
Tunisia
Journal
Heliyon
ISSN: 2405-8440
Titre abrégé: Heliyon
Pays: England
ID NLM: 101672560
Informations de publication
Date de publication:
Sep 2021
Sep 2021
Historique:
received:
17
02
2021
revised:
28
03
2021
accepted:
01
09
2021
entrez:
15
9
2021
pubmed:
16
9
2021
medline:
16
9
2021
Statut:
epublish
Résumé
Rift Valley fever (RVF) has been reported in the sub-Saharan region of Africa, Egypt and Arabian Peninsula - Yemen and Saudi Arabia, over the past 20 years and is a threat to both the animal and human populations in Tunisia. Tunisia is considered as a high-risk country for the introduction of RVF due to the informal movements of diseased animals already reported in the neighboring countries. The objective of this study was to assess the status of RVF in small ruminants and camels in Tunisia. A risk-based serological survey was conducted to evaluate the presence of RVF based on spatial qualitative risk analysis (SQRA). Samples were collected from small ruminants (sheep and goats) (n = 1,114), and camels (n = 173) samples, belonging to 18 breeders in 14 governorates between November 2017 and January 2018. Samples were tested using an RVF specific multispecies competitive ELISA. Out of the 1,287 samples tested for the presence of RVF IgG antibodies by ELISA, only one positive sample 0.07% (1/1 287) was detected but not confirmed with the virus neutralization test (VNT) used for confirmation. So far, no RVF outbreaks have been reported in Tunisia and our study confirmed the absence of RVF in livestock up to January 2018. Further investigations are needed to confirm the RVF-free status of Tunisia today.
Identifiants
pubmed: 34522818
doi: 10.1016/j.heliyon.2021.e07932
pii: S2405-8440(21)02035-1
pmc: PMC8427255
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e07932Informations de copyright
© 2021 The Authors. Published by Elsevier Ltd.
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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