Department: Pathobiology and Population Sciences

Campus: Hawkshead

Research Groups: Pathogen Flow in Ecosystems, Sustainable Food Systems, Antimicrobial Resistance, IRLFS (Research Programme)

Research Centres: RVC Quantitative Biology Resource, Veterinary Epidemiology, Economics and Public Health

Guillaume is a veterinarian and epidemiologist. He is experienced in conducting research at the interface between epidemiology and other disciplines, including virology, anthropology, economics and archaeology. He is currently involved in projects focusing on avian influenza, foodborne pathogens, AMR, peste des petits ruminants, and the role of live animal trade networks in the spread of animal and zoonotic diseases.

Guillaume graduated with a degree in Veterinary Medicine from the Veterinary School of Alfort, France, in 2005. He obtained an MSc in Ecology from the University Pierre and Marie Curie Paris VI in 2006, and completed a Doctorate of Veterinary Medicine in 2007. He joined the RVC as a PhD student in October 2007.

Funded by the Bloomsbury consortium, his PhD was undertaken in collaboration with the London School of Hygiene and Tropical Medicine and the Imperial College. Guillaume was awarded his PhD in 2011 and subsequently commenced a research fellowship.

One of Guillaume’s key research interests is understanding the way in which livestock production systems shape the emergence, spread, and maintenance of animal and zoonotic diseases. Much of his research has focused on the role of live animal trading networks in the transmission of infectious diseases, especially avian influenza viruses. His past and current research activities have included mathematical modelling of disease transmission, network analysis, qualitative and quantitative risk assessment, multivariate analysis, and designing and conducting field surveys in domestic and wildlife populations in Africa, Asia and South America. His research has been increasingly inter-disciplinary, involving collaborative work and the development of integrative approaches at the interface between epidemiology and virology, anthropology, economics, behavioural economics, archaeology.

Guillaume is currently the research coordinator of the UKRI GCRF One Heath poultry Hub ( This project aims to assess the impact of poultry production intensification on the transmission and evolutionary dynamics of avian influenza viruses, foodborne pathogens and antimicrobial resistance. It is taking place in Bangladesh, India, Sri Lanka and Viet Nam. He is also involved in projects on Peste des Petits Ruminants, African Swine Fever, swine influenza and Rift Valley Fever.

* These authors contributed equally to this work


Yoo DA*, Kim Y*, Lee ES, Lim JS, Hong SK, Lee IS, Jung CS, Yoon HC, Wee SH, Pfeiffer DU, Fournié G (2021) Transmission Dynamics of African Swine Fever Virus, South Korea, 2019. Emerging Infectious Diseases, 27(7).

Moyen N, Hoque MA, Mahmud R, Hasan M, Sarkar S, Biswas PK, Mehedi H, Henning J, Mangtani P, Flora MS, Rahman M, Debnath NC, Giasuddin M, Barnett T, Pfeiffer DU, Fournié G (2021) Avian influenza transmission risk along live poultry trading networks, Bangladesh. Scientific Reports, in press.

Kim Y, Métras R, Dommergues L, Youssouffi C, Combo S, Le Godais G, Pfeiffer DU, Cêtre-Sossah C, Cardinale E, Filleul L, Youssouf H, Subiros M, Fournié G (2021) The role of livestock movements in the spread of Rift Valley fever virus in animals and humans in Mayotte, 2018–19. PLoS Neglected Tropical Diseases, 15(3):e0009202.

Barnett T, Fournié G (2021) Zoonoses and wet markets: beyond technical interventions. The Lancet Planetary Health, 5(1):e2-e3.

Warembourg C, Fournié G, Abakar MF, Alvarez D, Berger-González M, Odoch T, Wera E, Alobo G, Carvallo ET, Bal VD, Hernandez AL (2021) Predictors of free-roaming domestic dogs' contact network centrality and their relevance for rabies control. Scientific Reports, 11(1):1-3.

Hennessey M, Fournié G, Hoque MA, Biswas PK, Alarcon P, Ebata A, Mahmud R, Hasan M, Barnett T (2021) Intensification of fragility: poultry production and distribution in Bangladesh and its implications for disease risk. Preventive Veterinary Medicine, 191:105367.

Høg E, Fournié G, Hoque MA, Mahmud R, Pfeiffer DU, Barnett T (2021) Avian influenza risk environment: Live bird commodity chains in Chattogram, Bangladesh. Frontiers in Veterinary Science, in press.

Gupta SD, Fournié G, Hoque MA, Henning J (2020) Factors influencing chicken farmers' decisions to implement prevention and control measures to reduce avian influenza virus spread under endemic conditions. Transboundary and Emerging Diseases, 68(1):194-207.

Gupta SD, Hoque MA, Fournié G, Henning J (2020) Patterns of Avian Influenza A (H5) and A (H9) virus infection in backyard, commercial broiler and layer chicken farms in Bangladesh. Transboundary and Emerging Diseases, 68(1):137-51.

Al Sattar A, Mahmud R, Mohsin MAS, Chisty NN, Uddin MN, Irin N, Barnett T, Fournié G, Houghton E, Hoque MA (2021) COVID-19 Impact on Poultry Production and Distribution Networks in Bangladesh. Frontiers in Sustainable Food Systems, 306.

Chapot L*, Sarker MS*, Begum R, Hossain D, Akter R, Hasan MM, Bupasha ZB, Bayzid M, Salauddin M, Parvej MS, Uddin AH., Hoque F, Chowdhury J, Ullah MN, Rahman MK, Siddiky NA, Fournié G, Samad MA (2021) Knowledge, Attitudes and Practices Regarding Antibiotic Use and Resistance among Veterinary Students in Bangladesh. Antibiotics, 10(3):332.

Chapot L*, Whatford L*, Compston P, Tak M, Cuevas S, Garza M, Bennani H, Bin Aslam H, Hennessey M, Limon G, Queenan K, Fournié G, Dadios N, Häsler B (2021) A Global Media Analysis of the Impact of the COVID-19 pandemic on Chicken Meat Food Systems: Key Vulnerabilities and Opportunities for Building Resilience. Sustainability, 13(16):9435.

Hossain ME, Hoque MA, Giorgi E, Fournié G, Das GB, Henning J (2021) Impact of improved small-scale livestock farming on human nutrition. Scientific Reports, 11(1):1-11.

Paul MC, Fournié G (2021) Contexts matter: Epidemiology and control of avian and swine influenza in contrasted settings. Transboundary and Emerging Diseases, 68(1):i-ii.

Roger FL, Fournié G, Binot A, Wieland B, Kock RA, Diallo A, Caron A, Jones BA (2021) Peste des Petits Ruminants (PPR): Generating evidence to support eradication efforts. Frontiers in Veterinary Science, 7:1245.

Bendrey R, Fournié G (2021) Zoonotic brucellosis from the long view: Can the past contribute to the present? Infection Control & Hospital Epidemiology, 42(4):505-6.


Barnett T, Pfeiffer DU, Hoque MA, Giasuddin M, Flora MS, Biswas PK, Debnath N, Fournié G (2020) Practising co-production and inter-disciplinarity: Challenges and implications for one health research. Preventive Veterinary Medicine, 177:105949.

Métras R, Edmunds WJ, Youssouffi C, Dommergues L, Fournié G, Camacho A, Funk S, Cardinale E, Le Godais G, Combo S, Filleul L, Youssouf H, Subiros M (2020) Estimation of Rift Valley fever virus spillover to humans during the Mayotte 2018–2019 epidemic. Proceedings of the National Academy of Sciences of the United States of America, 117(39):24567-24574.

Willgert K, Meyer A, Tung DX, Thu NV, Long PT, Newman S, Thuy NTT, Padungtod P, Fournié G, Pfeiffer DU, Vergne T (2020) Transmission of highly pathogenic avian influenza in the nomadic free-grazing duck production system in Viet Nam. Scientific Report, 10:8432.

Kim Y, Leung MHY, Kwok W, Fournié G, Li J, Lee PKH, Pfeiffer DU (2020) Antibiotic resistance gene sharing networks and the effect of dietary nutritional content on the canine and feline gut resistome. Animal Microbiome, 2(1):4.

Bendrey R, Cassidy JP, Fournié G, Merrett DC, Oakes RHA, Taylor GM (2020) Approaching ancient disease from a One Health perspective: Interdisciplinary review for the investigation of zoonotic brucellosis. International Journal of Osteoarchaeology, 30(1):99-108.

Imam T, Gibson JS, Foysal M, Das SB, Gupta SD, Fournié G, Hoque MA, Henning J (2020) A cross-sectional study of antimicrobial usage on commercial broiler and layer chicken farms in Bangladesh. Frontiers in veterinary science, 7.


Fournié G, Pfeiffer DU (2019) Optimal control of animal diseases. Nature Sustainability, 2(9):789-90.

Sealy JE, Fournié G, Trang PH, Dang NH, Sadeyen JR, Thanh TL, van Doorn HR, Bryant JE, Iqbal M (2019) Poultry trading behaviours in Vietnamese live bird markets as risk factors for avian influenza infection in chickens. Transboundary and Emerging Diseases, 66(6):2507-16.

Høg E, Fournié G, Hoque MA, Mahmud R, Pfeiffer DU, Barnett T (2019) Competing biosecurity and risk rationalities in the Chittagong poultry commodity chain, Bangladesh. Biosocieties, 14(3):368-392.

Ferdous J, Bradshaw A, Islam SKMA, Zamil S, Islam A, Ahad A, Fournié G, Anwer MS, Hoque MA (2019) Antimicrobial residues in chicken and fish, Chittagong, Bangladesh. Ecohealth, 16(3):429-440.

Vergne T, Meyer A, Long PT, Elkholly DA, Inui K, Padungtod P, Newman SH, Fournié G, Pfeiffer DU (2019) Optimising the detectability of H5N1 and H5N6 highly pathogenic avian influenza viruses in Vietnamese live-bird markets. Scientific Reports, 9(1):1031.


Fournié G, Waret-Szkuta A, Camacho A, Yigezu LM, Pfeiffer DU, Roger F (2018) A dynamic model of transmission and elimination peste des petits ruminants in Ethiopia. Proceedings of the National Academy of Sciences of the United States of America, 115(33):8454-8459.

Muellner U*, Fournié G*, Muellner P, Ahlstrom C, Pfeiffer DU (2018) epidemix-an interactive multi-model application for teaching and visualizing infectious disease transmission. Epidemics, 23:49-54.

Kim Y*, Biswas PK*, Giasuddin M*, Hasan M, Mahmud R, Chang YM, Essen S, Samad MA, Lewis NS, Brown IH, Moyen N, Hoque MA, Debnath NC, Pfeiffer DU, Fournié G (2018) Prevalence of avian influenza A(H5) and A(H9) in live bird markets in Bangladesh. Emerging Infectious Diseases, 24(12):2309-2316.

Moyen N, Ahmed G, Gupta S, Tenzin T, Khan R, Khan T, Debnath N, Yamage M, Pfeiffer DU, Fournié G (2018) A large-scale study of a poultry trading network in Bangladesh: implications for control and surveillance of avian influenza viruses. BMC Veterinary Research, 14(1):12.

Kim Y, Dommergues L, M'sa AB, Mérot P, Cardinale E, Edmunds J, Pfeiffer D, Fournié G*, Métras R* (2018) Livestock trade network: potential for disease transmission and implications for risk-based surveillance on the island of Mayotte. Scientific Reports, 8(1):11550.

Chattopadhyay K, Fournié G, Abul Kalam M, Biswas PK, Hoque A, Debnath NC, Rahman M, Pfeiffer DU, Harper D, Heymann DL (2018) A qualitative stakeholder analysis of avian influenza policy in Bangladesh. Ecohealth, 15(1):63-71.

Mellor KC, Meyer A, Elkholly DA, Fournié G, Long PT, Inui K, Padungtod P, Gilbert M, Newman SH, Vergne T, Pfeiffer DU, Stevens KB (2018) Comparative epidemiology of highly pathogenic avian influenza virus H5N1 and H5N6 in Vietnamese live bird markets: spatiotemporal patterns of distribution and risk factors. Frontiers in Veterinary Science, 5:51.

Saegerman C, Bertagnoli S, Meyer G, Ganière JP, Caufour P, De Clercq K, Jacquiet P, Fournié G, Hautefeuille C, Etore F, Casal J (2018) Risk of introduction of Lumpy Skin Disease in France by the import of vectors in animal trucks. Plos One, 13(6):e0198506.


Delabouglise A, Choisy M, Phan TD, Antoine-Moussiaux N, Peyre M, Vu TD, Pfeiffer DU, Fournié G.
Economic factors influencing zoonotic disease dynamics: demand for poultry meat and seasonal transmission of avian influenza in Vietnam.
Sci Rep. 2017 Jul 19;7(1):5905. doi: 10.1038/s41598-017-06244-6

Fournié G, Høg E, Barnett T, Pfeiffer DU, Mangtani P (2017) A systematic review and meta-analysis of practices exposing humans to avian influenza viruses, their prevalence and rationale. American Journal of Tropical Medicine & Hygiene, 97(2):376-388.

Fournié G, Pfeiffer DU, Bendrey R (2017) Early animal farming and zoonotic disease dynamics: modelling brucellosis transmission in Neolithic goat populations. Royal Society Open Science, 4:160943.

Delabouglise A, Choisy M, Phan TD, Antoine-Moussiaux N, Peyre M, Vu TD, Pfeiffer DU, Fournié G (2017) Seasonality of demand for livestock products driving infectious diseases dynamics: the case of avian influenza in Viet Nam. Scientific Reports, 7(1):5905.

Métras R, Fournié G, Dommergues L, Camacho A, Cavalerie L, Mérot P, Keeling MJ, Cêtre-Sossah C, Cardinale E, Edmunds WJ (2017) Drivers for Rift Valley fever emergence in Mayotte: A Bayesian modelling approach. PLoS Neglected Tropical Diseases, 11(7):e0005767.

Baudon E, Fournié G, Hiep DT, Pham TT, Duboz R, Gély M, Peiris M, Cowling BJ, Ton VD, Peyre M (2017) Analysis of Swine Movements in a Province in Northern Vietnam and Application in the Design of Surveillance Strategies for Infectious Diseases. Transboundary and Emerging Diseases, 64(2):411-424.

Limon G, Fournié G, Lewis EG, Dominguez-Salas P, Leyton-Michovich D, Gonzales-Gustavson EA, Gonzalez AE, Cabezas AH, Pinto J, Rushton J, Guitian J (2017) Using mixed methods to assess food security and coping strategies: a case study among smallholders in the Andean region. Food Security, 9(5):1019-40.

Delabouglise A, Antoine-Moissiaux N, Tatong D, Chumkaeo A, Binot A, Fournié G, Pilot E, Phimpraphi W, Kasemsuwan S, Paul MC, Duboz R, Salem G, Peyre M (2017) Cultural Practices Shaping Zoonotic Diseases Surveillance: The Case of Highly Pathogenic Avian Influenza and Thailand Native Chicken Farmers. Transboundary and Emerging Diseases, 64(4):1294-1305.

Machalaba C, Smith KM, Awada L, Berry K, Berthe F, Bouley TA, Bruce M, Cortiñas Abrahantes J, El Turabi A, Feferholtz Y, Flynn L, Fournié G, (…) Karesh WB (2017) One Health Economics to confront disease threats. Trans R Soc Trop Med Hyg, 111(6):235-7.


Fournié G, Tripodi A, Nguyen TT, Nguyen VT, Tran TT, Bisson A, Pfeiffer DU, Newman SH (2016) Investigating poultry trade patterns to guide avian influenza surveillance and control: a case study in Vietnam. Scientific Reports, 6:29463.

Vergne T, Fournié G, Markovich MP, Ypma R, Katz R, Shkoda I, Lublin A, Perk S, Pfeiffer DU (2016) Transmission tree of the highly pathogenic avian influenza (H5N1) epidemic in Israel, 2015. Veterinary Research, 47:109.

Nathues H, Fournié G, Wieland B, Pfeiffer D, Stark K (2016) Modelling the within-herd transmission of Mycoplasma hyopneumoniae in closed pig herds. Porcine Health Management, 2-10.

Molia S, Boly IA, Duboz R, Coulibaly B, Guitian J, Grosbois V, Fournié G, Pfeiffer DU (2016) Live bird markets characterization and trading network analysis in Mali: Implications for the surveillance and control of avian influenza and Newcastle disease. Acta Tropica, 155:77-88.


Fournié G, Kearsley-Fleet L, Otte J, Pfeiffer DU (2015) Spatiotemporal trends in the discovery of new swine infectious agents. Veterinary Research, 46(1):114.

Fournié G, Goodman SJ, Cruz M, Cedeño V, Vélez A, Patiño L, Millins C, Gibbons LM, Fox MT, Cunningham AA (2015) Biogeography of parasitic nematode communities in the Galápagos giant tortoise: implications for conservation management. PLoS One, 10(9):e0135684.

Barnett T, Fournié G, Gupta S, Seeley J (2015) Some considerations concerning the challenge of incorporating social variables into epidemiological models of infectious disease transmission. Global Public Health, 10(4):438-448.

Bronner A, Morignat E, Fournié G, Vergne T, Vinard JL, Gay E, Calavas D (2015) Syndromic surveillance of abortions in beef cattle based on the prospective analysis of spatio-temporal variations of calvings. Scientific Reports, 5:18285.

Bronner A, Morignat E, Gay E, Vergne T, Fournié G, Pfeiffer DU, Calavas D (2015) Iso-population partition: An innovative epidemiological approach to mapping and analyzing spatially aggregated data. Preventive Veterinary Medicine, 122(3):253-6.

Delabouglise A, Dao TH, Truong DB, Nguyen TT, Nguyen NT, Duboz R, Fournié G, Antoine-Moissiaux N, Grosbois V, Vu DT, Le TH, Nguyen VK, Salem G, Peyre M (2015) When private actors matter: Information-sharing network and surveillance of Highly Pathogenic Avian Influenza in Vietnam. Acta Tropica, 147:38-44.


Fournié G, Pfeiffer DU (2014) Can closure of live poultry markets halt the spread of H7N9? The Lancet, 383(9916):496-7.

Fournié G, Jones BA, Beauvais W, Njeumi F, Lubroth J, Cameron A, Pfeiffer DU (2014) The risk of rinderpest re-introduction in post-eradication era. Preventive Veterinary Medicine, 113(2):175-84.

Costard S, Fournié G, Pfeiffer DU (2014) Using risk assessment as part of a systems approach to the control and prevention of HPAIV H5N1. Ecohealth, 11(1):36-43.


Fournié G, Guitian J, Desvaux S, Vu Chi C, Dung Do H, Pfeiffer DU, Mangtani P, Ghani AC. (2013) Interventions for avian influenza A (H5N1) risk management in live bird market networks. Proceedings of the National Academy of Sciences of the United States of America, 110(22):9177-82.

Fournié G, Beauvais W, Jones BA, Lubroth J, Ambrosini F, Njeumi F, Cameron A, Pfeiffer DU (2013) Rinderpest virus sequestration and usage in the post-eradication era. Emerging Infectious Diseases, 19(1):151-3.

Fournié G, Pfeiffer DU (2013) Monitoring and controlling disease spread through live animal market networks. Veterinary Journal, 195(1):8-9.

Dean AS, Fournié G, Kulo AE, Boukaya GA, Schelling E, Bonfoh B (2013) Potential risk of regional disease spread in West Africa through cross-border cattle trade. PLoS One, 8(10):e75570.

Beauvais W, Fournié G, Jones BA, Cameron A, Njeumi F, Lubroth J, Pfeiffer DU (2013) Modelling the expected rate of laboratory biosafety breakdowns involving rinderpest virus in the post-eradication era. Preventive Veterinary Medicine, 112(3-4):248-56.

Mweu MM, Fournié G, Halasa T, Toft N, Nielsen SS. (2013) Temporal characterisation of the network of Danish cattle movements and its implication for disease control: 2000 – 2009. Preventive Veterinary Medicine, 110(3-4):379-87.


Fournié G, Guitian J, Desvaux S, Mangtani P, Ly S, Vu Chi C, San S, Dung Do H, Holl D, Pfeiffer DU, Vong S, Ghani AC (2012) Identifying live bird markets with the potential to act as reservoirs of avian influenza A (H5N1) virus: a survey in northern Viet Nam and Cambodia. PLoS One, 7(6):e37986.

Fournié G, Rushton J, Pfeiffer DU (2012) Disease modelling and the human factor. Veterinary Records, 170(6):157-8.

Bataille A, Fournié G, Cruz M, Cedeño V, Parker PG, Cunningham AA, Goodman SJ (2012) Host selection and parasite infection in Aedes taeniorhynchus, endemic disease vector in the Galápagos Islands. Infection Genetics Evolution, 12(8):1831-41.


Fournié G, Guitian FJ, Mangtani P, Ghani AC (2011) Impact of the implementation of rest days in live bird markets on the dynamics of H5N1 highly pathogenic avian influenza. Journal of the Royal Society Interface, 8(61):1079-8.

Métras R, Soares Magalhaes RJ, Hoang Dinh Q, Fournié G, Gilbert J, Do Huu D, Roland-Holst D, Pfeiffer DU (2011) An assessment of the feasibility of a poultry tracing scheme for smallholders in Viet Nam. Revue Scientifique et technique OIE, 30(3):703-14.

Fournié G, De Glanville W, Pfeiffer DU (2011) Epidemiology of highly pathogenic avian influenza virus strain type H5N1, in: Health and Animal Agriculture in Developing Countries, by Zilberman D, Otte J, Roland-Holst D, Pfeiffer DU (Springer & FAO).

Fournié G, Walker P, Porphyre T, Métras R, Pfeiffer DU (2011) Mathematical models of infectious diseases in livestock: concepts and application to the spread of highly pathogenic avian influenza virus strain type H5N1, in: Health and Animal Agriculture in Developing Countries, by Zilberman D, Otte J, Roland-Holst D, Pfeiffer DU (Springer & FAO).

Guillaume has taught veterinary epidemiology, statistics, mathematical modelling, and risk assessment at both undergraduate and postgraduate levels, in the UK and abroad, including in Bangladesh, Belgium, Canada, China, France, Ireland, Korea, Mexico, Thailand and Viet Nam. He has designed and regularly delivered introductory and advanced training workshops in network analysis and modelling.

Guillaume is a member of the applied epidemiology working group of the OIE/FAO network of expertise on animal influenza (OFFLU). He has contributed to several projects led by the Food and Agricultural Organization of the United Nations (FAO), aiming to inform surveillance and control programs in Asia and Africa. He has also contributed to the development of FAO global guidelines for the surveillance, emergency risk assessment and risk management of avian influenza A (H7N9). Guillaume was a member of the expert committee for animal health for the French agency for food, environmental and occupational health and safety (ANSES).

  • UK Research and Innovation (UKRI) Global Challenges Research Fund (GCRF) One Health Poultry Hub

    With integrated streams of social, economic, biological, mathematical and policy-led research, we are co-producing detailed knowledge on the biological, structural and socio-economic factors that shape networks of chicken production and distribution. The RVC-led UKRI GCRF One Health Poultry Hub brings together leading laboratory, clinical, veterinary and social scientists, as well as skilled communications experts, programme support staff and external stakeholders.  

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