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Saturday, October 18, 2025

Workshop places highlight on prevalence and influence of Strep Suis


Three-quarters of farms producing weaners within the UK have skilled Streptococcus suis illness previously 12 months, guests to the sixth Worldwide Workshop on the widespread pig illness heard this month.

The occasion came about at Pembroke School, Cambridge on September 5 and 6, co-organised by Cambridge Veterinary Faculty and the College of Montreal.

Extensively recognised as an entrenched, tough to regulate, bacterial problem for farmed pigs within the UK and globally, Strep suis is a critical zoonotic illness in some components of the world, together with south-east Asia the place there’s regarding emergence of multi-drug resistance.

The assembly targeted on the components underpinning the emergence of extra virulent strains and antimicrobial resistance.

 UK farm influence

The timeliness of the occasion was underlined by Cambridge College’s Professor Dan Tucker, who shared information from an influence evaluation performed throughout most of the main UK specialist pig veterinary practices.

This indicated important impacts on post-weaning and in addition pre-weaning pigs, according to information revealed in Europe (Niela 2021).

Notably, the survey discovered that greater than 75% of farms producing weaners have skilled Strep suis illness previously 12 months, with greater than 50% of batches affected to a point on these farms. Mortality as a result of Strep suis averaged 1.2% in affected batches.

A notable prevalence of illness was additionally reported on farms producing pre-weaned pigs, however the illness was far much less important within the finisher stage.

Estimates of the financial influence of Strep suis throughout greater than 2,000 manufacturing models included within the survey urged prices of round £1.23/pig produced, with the key drivers being mortality in weaning and pre-weaning levels, vaccination prices, and group stage antibiotic therapy within the post-weaning section.

Strep suis illness was proven to be driving excessive ranges of antibiotic utilization, particularly within the post-weaning interval.

Range of Strep suis

Dr Paloma Suárez Ferreiro

Dr Paloma Suárez Ferreiro, Ceva’s advertising and marketing director – autogenous vaccines Europe, mentioned the excessive range of Strep suis isolates from diseased pigs in Europe and their efficient administration by autogenous S. suis bacterins.

“The target of the presentation was to share a research that checked out 251 Strep suis isolates originating from seven European international locations,” she mentioned.

“The outcomes confirmed that probably the most prevalent serotypes had been Serotype 9 and Serotype 2. Within the research, they analysed 87 virulence genes and virtually each pressure had at the least one of many primary genes.

“Antibiotic resistance testing revealed that 85% of the strains carried at the least one resistance gene, making therapy more and more difficult, whereas solely about 15% confirmed no resistance.”

The presentation additionally addressed whether or not S. suis autogenous vaccines might be thought of an efficient instrument for illness prevention.

It was identified that the composition and the way in which that the autogenous vaccines are produced is vital to acquiring optimum efficacy, with totally different outcomes relying on the producer.

Dr Mandy Nevel, from AHDB, additionally spoke on the convention, duscussing antibiotic use in pigs within the UK – and progress, options, and boundaries to tackling the worldwide AMR problem.

Ceva Animal Well being supported the workshop as a Gold Sponsor. With audio system from 12 international locations and over 130 attendees becoming a member of the discussions, it mentioned this was a really well timed alternative for researchers, veterinarians, animal well being corporations and coverage makers to dive deep into the present proof supporting pathogenesis, epidemiology, prognosis and surveillance, and at last the essential matters of therapeutics, AMR and vaccine growth.

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