Senecavirus A – Page 2 – Swine in Minnesota

Assessing Senecavirus A shedding and transmission in growing pig populations

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.

This week, Drs. Preis and Corzo are inviting you to participate in an AASV-funded project regarding the epidemiology of Senecavirus A in growing pigs.

Senecavirus A in processing fluids during an outbreak of SVA – a call for study participation!

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.

Doctors Guilherme Preis and Cesar Corzo from the University of Minnesota share with us preliminary data from a Senecavirus A (SVA) outbreak investigation in a sow herd. This research emphasizes the importance of understanding the within-herd epidemiology of this virus.

Highlights

SVA is still present in the U.S. swine herds at lower levels.
SVA RNA has been consistently detected in processing fluids in the event of a disease outbreak in a sow herd.
Viral dynamics and shedding cessation in the breeding herds need to be better characterized.

Senecavirus A continues to be present in the United States swine herd

This week, Dr. Guilherme Preis, graduate student at the University of Minnesota with Drs. Corzo and Vannucci is sharing an update on the prevalence of Senecavirus A in the United States.

Key Points

Senecavirus A continues to present in the US at low levels.
Sow herds are more likely to test positive than growing pig herds.
SVA positive herds tend to have a large number of positive samples.

Role of stress on early pathogenesis of Senecavirus A in pigs

This week, Dr. Guilherme Preis, phD candidate with Dr. Fabio Vannucci shares results of his latest research on stress and its influence on Senecavirus A.

Key points

Impact of a stress model on the early pathogenesis of Senecavirus A was evaluated.
Time to detect replicating virus in snout skins and coronary bands was 48 hours post inoculation.
Naïve animals likely do not have enough time to develop vesicles during most transportation events, if exposed via the nasal route.

Shedding light on the epidemiology of Senecavirus A

PhD-candidate Guilherme Milanez Preis, working with Drs. Cesar Corzo and Fabio Vannucci on the epidemiology of Senecavirus A. In an article for the National Hog Farmer, Preis shares the latest results of his work on Senecavirus A prevalence in the USA.