Tag: pseudorabies

Epidemiological Shift of Aujeszky’s Disease in Argentina: from backyard persistence to endemic threats in large-scale integrated pig farm systems

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

In today’s Science Page researchers L. V. Alarcón, M. Machuca, F. Evangelista, P. M. Negrelli, P. Cipriotti, M. Mayr, V. Regalado, M. C. Villat, L. Benito, E. Ortega, R. Ravone, M. Dibarbora, S. M. Serena, H. R. Sanguinetti, M. G. Echeverría, C. J. Perfumo, and E. Mateu share their results of their study looking at Aujeszky’s disease in Argentina.

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What you need to know about pseudorabies

By the University of Minnesota Swine Group

The reporting on April 30, 2026 of pigs positive to pseudorabies in Iowa and Texas is a good reminder that we cannot be complacent when it comes to infectious diseases.

Pseudorabies virus (PRV) causes a devastating clinical picture resembling rabies in young pigs, thus the name. This disease, also known as Aujeszky’s disease, is most severe in piglets, causing high mortality as well as tremors, seizures, paralysis, incoordination and “dog-sitting” signs. As they get older, infected pigs experience respiratory disease with fever, coughing, and pneumonia. In sows, PRV causes abortions and stillbirths and in boars the virus can be shed in semen. PRV transmits primarily by direct contact with secretions of infected pigs but other routes such as exposure to contaminated fomites or aerosols can lead to infection. 

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