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Ferran Jori   Dr.  Senior Scientist or Principal Investigator 
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Ferran Jori published an article in January 2018.
Top co-authors See all
Janusz T. Paweska

110 shared publications

Centre for Emerging Zoonotic and Parasitic Diseases, National Institute for Communicable Diseases, National Health Laboratory Service, Sandringham 2192, South Africa;(P.J.v.V.);(J.K.)

Armanda Duarte Slager Bastos

78 shared publications

Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa

Chevalier Véronique

64 shared publications

CIRAD

François Roger

60 shared publications

ASTRE, Uni. Montpellier, CIRAD, INRA, 34398 Montpellier, France;(J.C.);(H.M.D.N.);(F.R.)

Annelise Tran

50 shared publications

CIRAD-ES-UMR TETIS (REU)

24
Publications
41
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0
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146
Citations
Publication Record
Distribution of Articles published per year 
(2001 - 2018)
Total number of journals
published in
 
16
 
Publications See all
Article 1 Read 1 Citation Aujeszky's Disease and Hepatitis E Viruses Transmission between Domestic Pigs and Wild Boars in Corsica: Evaluating the ... François Charrier, Sophie Rossi, Ferran Jori, Oscar Maestrin... Published: 24 January 2018
Frontiers in Veterinary Science, doi: 10.3389/fvets.2018.00001
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
Wildlife species as reservoirs of infectious pathogens represent a serious constraint in the implementation of disease management strategies. In the Mediterranean island of Corsica, the dynamics of hepatitis E virus (HEV) and Aujeszky's disease virus (ADV) are suspected to be influenced by interactions between wild and domestic pigs. To improve our understanding of these influences, we first compared the seroprevalences of both viruses in domestic pig populations from different locations with contrasted levels of wild-domestic interactions, ADV vaccination, biosafety, and farm husbandry. Second, we performed an analysis at a more restricted geographical scale, to assess the matching of ADV or HEV prevalence between sympatric wild boar and outdoor pig farms most exposed to interactions with wildlife. Logistic models were adjusted to the observed data. A high seroprevalence of HEV (>80%) and ADV (40%) in pigs, with no significant difference according to the region, confirms that both pathogens are enzootic in Corsica. Vaccination against ADV had a strong protective effect, even when performed voluntarily by farmers. Farm biosafety had an additional effect on pigs' exposure, suggesting that contact between wild boars and pigs were involved in disease transmission. A strong correlation in HEV seroprevalence was observed between pigs and wild boars that were in close contact, and significantly lower seroprevalence was observed in pigs when they had little contact with wild boars due to spatial segregation. These results suggest a regular HEV circulation between sympatric wild boar and domestic pigs. The high HEV seroprevalence observed in domestic pigs (>80%) suggests a spillover of the virus from domestic to wild populations through environmental contamination, but this hypothesis has to be confirmed. Conversely, even though avoiding sows' release on pasture during estrus showed some protecting effect in the free ranging pig farms regarding ADV, ADV seroprevalence was not dependent on the swine populations (wild or domestic) or on the wild-domestic spatial overlap, suggesting two quasi-separate enzootic cycles. This information will prove useful for designing more efficient disease management strategies in Corsica and similar contexts.
Article 10 Reads 4 Citations Questionnaire-Based Assessment of Wild Boar/Domestic Pig Interactions and Implications for Disease Risk Management in Co... Ferran Jori, Anne Relun, Bastien Trabucco, François Charrier... Published: 01 December 2017
Frontiers in Veterinary Science, doi: 10.3389/fvets.2017.00198
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
Wild boars and domestic pigs belong to the same species (Sus scrofa). When sympatric populations of wild boars, feral pigs, and domestic pigs share the same environment, interactions between domestic and wild suids (IDWS) are suspected to facilitate the spread and maintenance of several pig pathogens which can impact on public health and pig production. However, information on the nature and factors facilitating those IDWS are rarely described in the literature. In order to understand the occurrence, nature, and the factors facilitating IDWS, a total of 85 semi-structured interviews were implemented face to face among 25 strict farmers, 20 strict hunters, and 40 hunting farmers in the main traditional pig-farming regions of Corsica, where IDWS are suspected to be common and widespread. Different forms of IDWS were described: those linked with sexual attraction of wild boars by domestic sows (including sexual interactions and fights between wild and domestic boars) were most frequently reported (by 61 and 44% of the respondents, respectively) in the autumn months and early winter. Foraging around common food or water was equally frequent (reported by 60% of the respondents) but spread all along the year except in winter. Spatially, IDWS were more frequent in higher altitude pastures were pig herds remain unattended during summer and autumn months with limited human presence. Abandonment of carcasses and carcass offal in the forest were equally frequent and efficient form of IDWS reported by 70% of the respondents. Certain traditional practices already implemented by hunters and farmers had the potential to mitigate IDWS in the local context. This study provided quantitative evidence of the nature of different IDWS in the context of extensive commercial outdoor pig farming in Corsica and identified their spatial and temporal trends. The identification of those trends is useful to target suitable times and locations to develop further ecological investigations of IDWS at a finer scale in order to better understand diseases transmission patterns between populations and promote adapted management strategies.
BOOK-CHAPTER 2 Reads 0 Citations Eurasian Wild Boar Sus scrofa (Linnaeus, 1758) Oliver Keuling, Tomasz Podgórski, Andrea Monaco, Dorota Mert... Published: 21 November 2017
Ecology, Conservation and Management of Wild Pigs and Peccaries, doi: 10.1017/9781316941232.023
DOI See at publisher website
BOOK-CHAPTER 0 Reads 2 Citations Disease Transmission at the Interface between Wild and Domestic Suiform Species in the Old and New Worlds Ferran Jori, Ariane Payne, Richard Kock, Alessandra Nava, Ka... Published: 21 November 2017
Ecology, Conservation and Management of Wild Pigs and Peccaries, doi: 10.1017/9781316941232.037
DOI See at publisher website
Article 0 Reads 6 Citations Approaches and Perspectives for Development of African Swine Fever Virus Vaccines Marisa Arias, Ana De La Torre, Linda Dixon, Carmina Gallardo... Published: 07 October 2017
Vaccines, doi: 10.3390/vaccines5040035
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
African swine fever (ASF) is a complex disease of swine, caused by a large DNA virus belonging to the family Asfarviridae. The disease shows variable clinical signs, with high case fatality rates, up to 100%, in the acute forms. ASF is currently present in Africa and Europe where it circulates in different scenarios causing a high socio-economic impact. In most affected regions, control has not been effective in part due to lack of a vaccine. The availability of an effective and safe ASFV vaccines would support and enforce control–eradication strategies. Therefore, work leading to the rational development of protective ASF vaccines is a high priority. Several factors have hindered vaccine development, including the complexity of the ASF virus particle and the large number of proteins encoded by its genome. Many of these virus proteins inhibit the host’s immune system thus facilitating virus replication and persistence. We review previous work aimed at understanding ASFV–host interactions, including mechanisms of protective immunity, and approaches for vaccine development. These include live attenuated vaccines, and “subunit” vaccines, based on DNA, proteins, or virus vectors. In the shorter to medium term, live attenuated vaccines are the most promising and best positioned candidates. Gaps and future research directions are evaluated.
Article 0 Reads 11 Citations Genetic characterization of African swine fever virus isolates from soft ticks at the wildlife/domestic interface in Moz... C. J. Quembo, F. Jori, W. Vosloo, L. Heath Published: 17 September 2017
Transboundary and Emerging Diseases, doi: 10.1111/tbed.12700
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
African swine fever virus (ASFV) is one of the most threatening infectious diseases of pigs. There are not sufficient data to indicate the importance of the sylvatic cycle in the spread and maintenance of the disease locally and potentially, globally. To assess the capacity to maintain ASF in the environment, we investigated the presence of soft tickreservoirs of ASFV in Gorongosa National Park (GNP) and its surrounding villages. A total of 1,658 soft ticks were recovered from warthog burrows and pig pens at the wildlife/livestock interface of the GNP and viral DNA was confirmed by nested PCR in 19% of Ornithodoros porcinus porcinus and 15% of O. p. domesticus. However, isolation of ASFV was only achieved in approximately 50% of the PCR‐positive samples with nineteen haemadsorbing virus isolates recovered. These were genotyped using a combination of partial sequencing of the B646L gene (p72) and analysis of the central variable region (CVR) of the B602L gene. Eleven isolates were classified as belonging to genotype II and homologous to contemporary isolates from southern Africa, the Indian Ocean and eastern Europe. Three isolates grouped within genotype V and were similar to previous isolates from Mozambique and Malawi. The remaining five isolates constituted a new, previously unidentified genotype, designated genotype XXIV. This work confirms for the first time that the virus currently circulating in eastern Europe is likely to have a wildlife origin, and that the large diversity of ASFV maintained in wildlife areas can act as a permanent sources of different strains for the domestic pig value chain in Mozambique and beyond its boundaries. Their genetic similarity to ASFV strains currently spreading across Europe justifies the need to continue studying the sylvatic cycle in this African country and other parts of southern Africa in order to identify potential hot spots of ASF emergence and target surveillance and control efforts.
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