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Q&A: Pork, pathogens and progress—a close look at PRRSV research

The pork industry provides people across different cultures a considerable source of protein, essential nutrients and a versatile ingredient for diverse culinary traditions. So, when the problem of porcine reproductive and respiratory syndrome virus (PRRSV) infection in the pork industry results in an economic loss of $650 million annually in the United States, finding a solution is of critical significance.

A diverse group of researchers at the Faculty of Science and Leiden University Medical Center, The Netherlands, recently published a paper sharing their discovery on better understanding and managing PRRSV. The following interview is with Dr. Brian Mark, professor at the department of microbiology and dean of the Faculty of Science, who leads a laboratory focused on understanding the molecular basis of diseases.

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Season 7, Episode 6: Using Competitive Exclusion to Reduce E. coli in Weaned Pigs

Video: Season 7, Episode 6: Using Competitive Exclusion to Reduce E. coli in Weaned Pigs

Newly weaned pigs are especially vulnerable to pathogenic E. coli, which can cause diarrhea and other health challenges. Research is exploring how introducing beneficial bacteria before exposure to harmful bacteria could help reduce the severity of post-weaning disease, with timing playing an important role.

Dr. Marcelo Almeida, assistant professor in Iowa State University’s College of Veterinary Medicine, and Dr. Rodrigo Paiva, graduate student and pathology resident at the Iowa State University Veterinary Diagnostic Laboratory, discuss their research on competitive exclusion in weaned pigs. They explain how this approach works, why introducing beneficial microorganisms before E. coli exposure may improve outcomes and what they learned about diarrhea, E. coli shedding and pig performance. The conversation also explores the potential to address antimicrobial resistance and the considerations for applying these findings in commercial pork production.