Porcine reproductive and respiratory syndrome (PRRS) and porcine epidemic diarrhea (PED) cost the US swine industry more than $1 billion/year. Our goals combine data-visualization with spatial and statistical methods to increase the fundamental knowledge about PED and PRRS spatial epidemiology, enhancing our understanding of disease spread to develop novel data-integration tools to optimize disease control.

Publications

Descriptive and risk analysis of vehicle movements linked to porcine reproductive and respiratory syndrome and porcine epidemic diarrhea transmission in US commercial swine farms
Descriptive and risk analysis of vehicle movements linked to porcine reproductive and respiratory syndrome and porcine epidemic diarrhea transmission in US commercial swine farms
Galvis, Jason A., Parker, T.B., Corzo, C.A., Ferreira, J.B., Meiklejohn, K.A., Machado, Gustavo 2026. Preprint — arXiv.
Truck Cleaning and Disinfection, and the Risk of PRRSV Dissemination in Multi-Site Pig Production Systems in the United States
Truck Cleaning and Disinfection, and the Risk of PRRSV Dissemination in Multi-Site Pig Production Systems in the United States
Natalia Elena Martinez Munoz, Cesar A Corzo, Machado, Gustavo, and Ekiri, Abel 2025. Preventive Veterinary Medicine.
Evaluation of porcine epidemic diarrhea virus RNA contamination on swine industry transportation vehicles
Evaluation of porcine epidemic diarrhea virus RNA contamination on swine industry transportation vehicles
Taylor B. Parker, Kelly A. Meiklejohn, Machado, Gustavo, Michael Rahe, Bradford Sean Darrow, Juliana Bonin Ferreira 2025. Preventive Veterinary Medicine.
Modeling between-farm transmission dynamics of porcine epidemic diarrhea virus: characterizing the dominant transmission routes
Modeling between-farm transmission dynamics of porcine epidemic diarrhea virus: characterizing the dominant transmission routes
Galvis, J.A., Corzo, C., Prada, J.M., Machado, G. 2022. Preventive Veterinary Medicine.
A discrete-time survival model for porcine epidemic diarrhea virus
A discrete-time survival model for porcine epidemic diarrhea virus
Trostle, Parker, Corzo, Cesar A., Reich, Brian J., Machado, Gustavo 2022. Transboundary and Emerging Diseases.
The between-farm transmission dynamics of Porcine Epidemic Diarrhea Virus: A short-term forecast modeling comparison and the effectiveness of control strategies
The between-farm transmission dynamics of Porcine Epidemic Diarrhea Virus: A short-term forecast modeling comparison and the effectiveness of control strategies
Galvis, J. A., Prada, J., Jones, C., Corzo, A.C., and Machado, Gustavo 2021. Transboundary and Emerging Diseases.
Porcine reproductive and respiratory syndrome virus dissemination across pig production systems in the United States
Porcine reproductive and respiratory syndrome virus dissemination across pig production systems in the United States
Jara, M., Rasmussen, D., Corzo, C. A., and Machado, Gustavo 2020. Transboundary and Emerging Diseases.
Identifying outbreaks of Porcine Epidemic Diarrhea virus through animal movements and spatial neighborhoods
Identifying outbreaks of Porcine Epidemic Diarrhea virus through animal movements and spatial neighborhoods
Machado, Gustavo, Vilalta, Carles, Recamonde-Mendoza, Mariana, Corzo, Cesar, Torremorell, Montserrat, Perez, Andrez, VanderWaal, Kimberly 2019. Scientific reports.

Funding

We are grateful for the funding agencies: