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Linhares: Digging deeper into PRRS outbreak management
Feb 02, 2022Jennifer GrullonComments Off on Linhares: Digging deeper into PRRS outbreak management
PRRS has challenged producers and swine veterinarians for decades. During that time, outbreak management and strategies have evolved along with the virus.
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VanderWaal: Expect to see new PRRS sublineages emerge
Feb 01, 2022Jennifer GrullonComments Off on VanderWaal: Expect to see new PRRS sublineages emerge
US pig producers know that many different strains of PRRS exist, but the continual emergence of new sub-lineages continues to destabilize progress towards PRRS control, said Kim VanderWaal, PhD,...
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How to manage herd closure for PRRS elimination
Jan 30, 2022Jennifer GrullonComments Off on How to manage herd closure for PRRS elimination
Herd closures to eliminate porcine reproductive and respiratory syndrome (PRRS) are on the increase due in part to the virulent variant identified as PRRS 1-4-4 L1C.
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Common mistakes to avoid during PRRS elimination
Dec 17, 2021Jennifer GrullonComments Off on Common mistakes to avoid during PRRS elimination
Eliminating porcine reproductive and respiratory syndrome (PRRS) virus from a breeding herd is not a simple task, and no herd acts exactly like the next, according to Brad Leuwerke, DVM, with Swine...
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Biosecurity, Global TOP NEWS, Interviews, News, PGT GLOBAL, PGT US, Podcasts, PRRS, Respiratory Health, TOP NEWS, Videos
Filtration audits help prepare for PRRS season
Dec 10, 2021Jennifer GrullonComments Off on Filtration audits help prepare for PRRS season
Regular biosecurity checks with a close look at filtration and ventilation systems will help prevent the spread of airborne pathogens like porcine reproductive and respiratory syndrome.
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Fostera® PRRS effective, lasting, safe despite ‘worst-case’ challenges
Dec 08, 2021Jennifer GrullonComments Off on Fostera® PRRS effective, lasting, safe despite ‘worst-case’ challenges
DISCOVERIES, Issue 26: It’s well known that modified-live PRRS vaccines help reduce production losses in breeding herds with PRRS. But when the challenge is especially severe, how well and for how...
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When should PRRS whole-genome sequencing be used?
Dec 03, 2021Jennifer GrullonComments Off on When should PRRS whole-genome sequencing be used?
For PRRS, there are benefits to whole-genome sequencing, especially when Orf 5 sequencing doesn’t fully answer important diagnostic questions.
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Don’t lose sight of M. hyo while battling other swine pathogens
Nov 30, 2021Jennifer GrullonComments Off on Don’t lose sight of M. hyo while battling other swine pathogens
TOOLBOX, Issue 1: An interview with Lucina Galina Pantoja, DVM, PhD, Director, Swine Technical Services, Zoetis
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Real-world confirmation of virus survival in feed ingredients
Nov 05, 2021Jennifer GrullonComments Off on Real-world confirmation of virus survival in feed ingredients
It’s well known today that several swine viruses can survive in feed ingredients under laboratory research conditions. But how does that translate to the real world?
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Performance — not serology or PCR — is best indicator of modified-live PRRS vaccine efficacy
Nov 03, 2021Jennifer GrullonComments Off on Performance — not serology or PCR — is best indicator of modified-live PRRS vaccine efficacy
TOOLBOX, Issue 24: Noel Garbes DVM, senior technical services veterinarian, Zoetis, recently talked with editors of Pig Health Today about measuring modified-live PRRS vaccine efficacy.
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Breeding Herd, Diagnostics, FSVS, Global TOPICS, Growing Pigs, Interviews, News, PGT GLOBAL, PGT US, Podcasts, PRRS, SVC, TOPICS, Videos
Virus persistence challenges PRRS management strategies
Oct 12, 2021Jennifer GrullonComments Off on Virus persistence challenges PRRS management strategies
Eliminating porcine reproductive and respiratory syndrome virus (PRRSV) from pigs might not yet be possible, but monitoring tools could help refine a herd's PRRSV stability.
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Time for a change? Farms achieve IAV-S-negative pigs after switching to whole-herd vaccination
Oct 06, 2021Jennifer GrullonComments Off on Time for a change? Farms achieve IAV-S-negative pigs after switching to whole-herd vaccination
DISCOVERIES, Issue 29: IAV-S continues to frustrate US pork producers. From respiratory problems to reproductive challenges, this rapidly changing virus negatively impacts productivity and...
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Virulent PRRS outbreaks in grow-finish require fast action to cut losses
Sep 22, 2021Jennifer GrullonComments Off on Virulent PRRS outbreaks in grow-finish require fast action to cut losses
A particularly difficult variant of the porcine reproductive and respiratory syndrome (PRRS) virus recently hit hog farms in south-central Minnesota.
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Molecular diagnostic tools help distinguish wild-type and vaccine strains of PRRSV
Sep 16, 2021Jennifer GrullonComments Off on Molecular diagnostic tools help distinguish wild-type and vaccine strains of PRRSV
Challenges associated with controlling porcine reproductive and respiratory syndrome virus (PRRSV) have resulted in the increased use of molecular diagnostic tests and sequencing.
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Breeding Herd, FSVS, Global TOP NEWS, Interviews, News, PGT GLOBAL, PGT US, Podcasts, PRRS, SVC, TOP NEWS, Videos
Revised herd classifications expand the PRRS road map
Sep 08, 2021Jennifer GrullonComments Off on Revised herd classifications expand the PRRS road map
The system used to classify breeding herds according to their PRRSV status has long helped swine veterinarians around the world to track the pathogen’s progress.
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Novel machine-learning tool can predict PRRSV outbreaks and biosecurity effectiveness
Aug 15, 2021Jennifer GrullonComments Off on Novel machine-learning tool can predict PRRSV outbreaks and biosecurity effectiveness
In spite of advanced biosecurity protocols, the porcine reproductive and respiratory syndrome virus (PRRSV) continues to plague global pork producers with unpredictable, seasonal outbreaks.
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Reducing PRRS outbreaks by using air filtration: What you need to know
Jul 20, 2021Jennifer GrullonComments Off on Reducing PRRS outbreaks by using air filtration: What you need to know
Jeff Feder, DVM, with Swine Vet Center, has spent 15 years fine-tuning filtration systems in client hog barns. Today, Feder has records to prove air filtration does reduce outbreaks of disease like...
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Gut microorganisms linked to PRRS vaccination success
Apr 09, 2021Jennifer GrullonComments Off on Gut microorganisms linked to PRRS vaccination success
Scientists have found that tiny microorganisms in the gut may help improve outcomes for pigs vaccinated against PRRSV in the face of viral respiratory challenge, suggesting a role for the microbiome...
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New PRRS 1-4-4 L1C variant presents dramatic symptoms, quick spread
Mar 25, 2021Jennifer GrullonComments Off on New PRRS 1-4-4 L1C variant presents dramatic symptoms, quick spread
A new variant of the porcine reproductive and respiratory syndrome virus 1-4-4 L1C strain is challenging veterinarians, diagnosticians and swine herds in the upper Midwest.
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Highly infectious PRRS variant causes high mortalities on sow farms
Mar 05, 2021Jennifer GrullonComments Off on Highly infectious PRRS variant causes high mortalities on sow farms
A variant of the porcine reproductive and respiratory syndrome (PRRS) virus is taking a heavy toll on hog farms in southern Minnesota and northern Iowa.
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Ct values predict PRRS nursery mortality, can guide vaccination decisions
Dec 27, 2020Jennifer GrullonComments Off on Ct values predict PRRS nursery mortality, can guide vaccination decisions
DISCOVERIES, Issue 18: Obtaining cycle threshold (Ct) values based on processing fluids provides a practical way to identify neonatal pigs at risk for nursery mortality associated with PRRS and can...
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Fostera® PRRS protects against diverse PRRS virus field strains
Oct 28, 2020Jennifer GrullonComments Off on Fostera® PRRS protects against diverse PRRS virus field strains
DISCOVERIES, Issue 19: PRRS has been described as one of the most important swine diseases of the last half-century. An estimated 20% to 25% of herds are still affected, and the syndrome remains the...
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Neonatal pigs with low levels of viremia may benefit from PRRS vaccination
Sep 27, 2020Jennifer GrullonComments Off on Neonatal pigs with low levels of viremia may benefit from PRRS vaccination
TOOLBOX, Issue 19: An interview with Jose Angulo, DVM, PRRS Specialist, Managing Veterinarian, Zoetis
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Can the processing-fluid toolbox expand beyond PRRS?
Sep 10, 2020Jennifer GrullonComments Off on Can the processing-fluid toolbox expand beyond PRRS?
Piglet processing fluids have been shown to be a practical, time-efficient and affordable diagnostic tool for PRRS, and some indications suggest that PCV2 offers promise as well.
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Today’s forecast: Scattered PRRS outbreaks with isolated sprinkles of PED
Sep 08, 2020Jennifer GrullonComments Off on Today’s forecast: Scattered PRRS outbreaks with isolated sprinkles of PED
Forecasting swine-disease outbreaks might become a lot like predicting the weather as scientists combine monitoring disease data with computer models.
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Biosecurity, FSVS, Global TOPICS, Interviews, News, PGT GLOBAL, PGT US, Podcasts, PRRS, TOPICS, Videos
Data show filtered farms break less often with PRRS
Jul 05, 2020Jennifer GrullonComments Off on Data show filtered farms break less often with PRRS
Nine years of data from the Morrison Swine Health Monitoring Project show farms with air-filtering systems have fewer outbreaks of PRRS than farms without filters.
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Vaccine trial data versus lineage: What’s the best way to predict PRRS vaccine performance?
Jun 24, 2020Jennifer GrullonComments Off on Vaccine trial data versus lineage: What’s the best way to predict PRRS vaccine performance?
TOOLBOX, Issue 20: An interview with Eva Jablonski, DVM, PRRS Specialist, Senior Technical Services Veterinarian, Zoetis
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Managing MLV PRRS vaccines for optimum performance and returns
May 28, 2020Jennifer GrullonComments Off on Managing MLV PRRS vaccines for optimum performance and returns
By Joseph F. Connor, DVM, MS, Carthage Veterinary Service, Ltd.
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Study compares PRRSV antibody-sampling options for sows
Apr 24, 2020Jennifer GrullonComments Off on Study compares PRRSV antibody-sampling options for sows
When it comes to porcine reproductive and respiratory virus it’s important for the veterinarian and farm personnel to know the health status of a herd or barn.
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FSVS, Global TOP NEWS, Interviews, News, PGT GLOBAL, PGT US, Podcasts, PRRS, Research, SVC, TOP NEWS, Videos
Outmaneuvering PRRSV requires a better understanding of genetic diversity
Feb 14, 2020Jennifer GrullonComments Off on Outmaneuvering PRRSV requires a better understanding of genetic diversity
PRRSV is constantly evolving, resulting in an extremely diverse virus with multiple lineages, but building a better understanding of that genetic diversity is the next step to making real progress...
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Three-phase plan helps seize control of PRRS
Jan 31, 2020Jennifer GrullonComments Off on Three-phase plan helps seize control of PRRS
By Jose Angulo, DVM Managing Veterinarian, PRRS specialist Pork Technical Services Zoetis
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Steps to mitigate cross-contamination of piglet processing fluids with PRRS MLV
Sep 09, 2019Jennifer GrullonComments Off on Steps to mitigate cross-contamination of piglet processing fluids with PRRS MLV
As piglets move from the sow farm to the growing stage, it’s important to know their porcine reproductive and respiratory syndrome (PRRS) status.
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PRRS in growing pigs linked to sow outbreaks
Jul 30, 2019Jennifer GrullonComments Off on PRRS in growing pigs linked to sow outbreaks
Porcine reproductive and respiratory syndrome (PRRS) in growing pigs may play an important role in PRRS outbreaks among sow herds.
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Does PRRS influence weaned pigs’ nutritional response?
Jul 25, 2019Jennifer GrullonComments Off on Does PRRS influence weaned pigs’ nutritional response?
In the past 30 years, the growth and body composition of US market hogs has changed dramatically, but the same cannot be said for dietary vitamin and mineral levels.
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Adequate gilt acclimation helps minimize the PRRSV ‘tax’
Jun 21, 2019Jennifer GrullonComments Off on Adequate gilt acclimation helps minimize the PRRSV ‘tax’
By Clayton Johnson, DVM Carthage Veterinary Service Integrated Veterinary Network
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Simpler, less costly monitoring methods helping pork industry get a better read on PRRS
May 10, 2019Jennifer GrullonComments Off on Simpler, less costly monitoring methods helping pork industry get a better read on PRRS
Newer testing methods for the PRRS virus are not only simpler and less costly than traditional procedures, they are also helping farms more accurately track the virus through different production...
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Why do summer PRRS breaks last longer than winter breaks?
Apr 24, 2019Jennifer GrullonComments Off on Why do summer PRRS breaks last longer than winter breaks?
Summer outbreaks of PRRS take 15 weeks longer to stabilize than PRRS outbreaks beginning in the winter, according to data from the Morrison Swine Health Monitoring Project (MSHMP).
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Lincomix offers flexible dose rate for M. hyo
Apr 16, 2019Jennifer GrullonComments Off on Lincomix offers flexible dose rate for M. hyo
TOOLBOX, Issue 7: An interview with Thomas Painter, DVM, US Pork Technical Services, Zoetis
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Strategies to weaken PRRS’ grip on US herds
Feb 22, 2019Jennifer GrullonComments Off on Strategies to weaken PRRS’ grip on US herds
After more than three decades, porcine reproductive and respiratory syndrome (PRRS) remains a serious disease threat to swine units in the US.
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Tails or testicles: Which are better for PRRSV monitoring?
Jan 04, 2019Jennifer GrullonComments Off on Tails or testicles: Which are better for PRRSV monitoring?
Pooled serum samples are a common method to monitor PPRSV in piglets. But this typically involves a limited number of samples, which reduces the sensitivity and makes detection especially challenging...
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Emerging Diseases, Global TOP NEWS, Interviews, PGT GLOBAL, PGT US, Podcasts, PRRS, TOP NEWS, Videos
SHIC establishes diagnostic strategies to get ahead of disease
Dec 10, 2018Jennifer GrullonComments Off on SHIC establishes diagnostic strategies to get ahead of disease
If knowledge is power, being prepared is security. Both are drivers behind the Swine Health Information Center’s (SHIC) program to share information among the nation’s four major swine veterinary...
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17 years of detective work, shared experiences helping pork industry get ahead of PRRS
Nov 29, 2018Jennifer GrullonComments Off on 17 years of detective work, shared experiences helping pork industry get ahead of PRRS
The evolution of knowledge about PRRS is now enabling pork producers and their veterinarians to make headway combatting this difficult and costly disease.
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Herd performance best measure of PRRS vaccine efficacy
Nov 09, 2018Jennifer GrullonComments Off on Herd performance best measure of PRRS vaccine efficacy
TOOLBOX, Issue 9: An interview with Jose Angulo, DVM, PRRS Specialist, Managing Veterinarian, Zoetis
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Processing fluids helping to fine tune diagnostics in swine herds thought to be PRRS-negative
Oct 10, 2018Jennifer GrullonComments Off on Processing fluids helping to fine tune diagnostics in swine herds thought to be PRRS-negative
Collecting aggregate samples of processing fluids during tail docking and castration is proving to be an excellent way to monitor herds for porcine reproductive and respiratory disease (PRRS) virus,...
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Mass vaccination with modified-live PRRSV vaccine has no significant production impact in stable herds
Oct 08, 2018Jennifer GrullonComments Off on Mass vaccination with modified-live PRRSV vaccine has no significant production impact in stable herds
Mass vaccination with a modified-live porcine reproductive and respiratory syndrome virus (PRRSV) vaccine has no significant negative impact on production performance in PRRSV-stable breeding herds,...
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Good data key to making sound PRRS decisions
Sep 25, 2018Jennifer GrullonComments Off on Good data key to making sound PRRS decisions
Implementing metrics and utilizing predictive analytics can help pork producers improve their management of PRRS.
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Close to the finish: How grower pigs spread PRRS to sow farms
Aug 27, 2018Jennifer GrullonComments Off on Close to the finish: How grower pigs spread PRRS to sow farms
It’s time to consider the role finishing pigs play in the spread of porcine reproductive and respiratory syndrome virus (PRRSV) to sow farms, according to Montserrat Torremorell, DVM, PhD,...
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‘Nuts n’ tails’ fluid testing is promising, practical method of PRRSV monitoring
Aug 15, 2018Jennifer GrullonComments Off on ‘Nuts n’ tails’ fluid testing is promising, practical method of PRRSV monitoring
Testing fluids obtained from routine castration and tail-docking procedures looks to be a promising, practical and affordable way to improve monitoring for PRRSV.
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Tips for successful oral-fluid sampling for PRRSV
Aug 08, 2018Jennifer GrullonComments Off on Tips for successful oral-fluid sampling for PRRSV
Oral-fluid sampling is an easy way to detect PRRSV or track changes in PRRSV infections in populations — and it can optimize your survey efforts by keeping a few simple tips in mind.
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Modified-live vaccines ‘by far’ most effective tool for combatting PRRS
Jul 30, 2018Jennifer GrullonComments Off on Modified-live vaccines ‘by far’ most effective tool for combatting PRRS
Modified-live vaccines are “by far” the most effective tool the industry currently has to control PRRSV, said Jay Calvert, PhD, research director, Global Biologicals Research, Zoetis.
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PCR falls short in monitoring PRRSV transport biosecurity
Jul 19, 2018Jennifer GrullonComments Off on PCR falls short in monitoring PRRSV transport biosecurity
Transport biosecurity is a growing priority as evidence shows that contaminated livestock trailers are a significant risk in spreading viruses between herds.
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Barn location can impact PRRS exposure risk
May 23, 2018Jennifer GrullonComments Off on Barn location can impact PRRS exposure risk
Several factors go into selecting a site for a pork-production unit, but research shows there are a couple more — specifically, terrain and vegetation — that may influence exposure to the porcine...
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Crossing the line: Biosecurity for employee entry is still a work in progress
May 14, 2018Jennifer GrullonComments Off on Crossing the line: Biosecurity for employee entry is still a work in progress
By Derald Holtkamp, MS, DVM Associate Professor Iowa State University
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Swine Health Monitoring Project expanding but needs more industry participants
May 05, 2018Jennifer GrullonComments Off on Swine Health Monitoring Project expanding but needs more industry participants
The Swine Health Monitoring Project continues to expand but ultimately needs data from 90% of the industry to reach its long-term goal of supporting the response to emerging pathogens, said the late...
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Special edition of Pig Health Today captures presentations from 2-day PRRS conference
May 03, 2018Jennifer GrullonComments Off on Special edition of Pig Health Today captures presentations from 2-day PRRS conference
Pig Health Today has published a free, 32-page special report, “Framing the Future of PRRS,” with news summaries of eight presentations by veterinarians and scientists specializing in porcine...
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Morrison Swine Health Monitoring Project underscores value of information sharing
Apr 23, 2018Jennifer GrullonComments Off on Morrison Swine Health Monitoring Project underscores value of information sharing
Collaboration among veterinarians working with different pork producers is one of the great benefits emanating from the Morrison Swine Health Monitoring Project (MSHMP).
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Breeding sows without CD163 gene might ultimately eliminate PRRS virus
Apr 12, 2018Jennifer GrullonComments Off on Breeding sows without CD163 gene might ultimately eliminate PRRS virus
Sows without the CD163 gene are not only resistant to porcine reproductive and respiratory syndrome (PRRS) virus, they also give birth to healthy, normal piglets — a finding that could...
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PRRSV in finishers may contribute to the disease on sow farms
Apr 09, 2018Jennifer GrullonComments Off on PRRSV in finishers may contribute to the disease on sow farms
It’s time to consider the role finishing pigs play in the spread of PRRSV to sow farms.
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Semi-annual report indicates progress combatting PRRSV
Apr 09, 2018Jennifer GrullonComments Off on Semi-annual report indicates progress combatting PRRSV
Producers and veterinarians have reduced the impact of porcine reproductive and respiratory syndrome virus (PRRSV) by more than $83 million over the past 6 years, according to a semi-annual study...
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Pork producers gain ground against PRRS with reduced production losses
Dec 08, 2017Jennifer GrullonComments Off on Pork producers gain ground against PRRS with reduced production losses
Porcine reproductive and respiratory syndrome (PRRS) remains one of the most costly viruses infecting US herds. But an Iowa State University study showed the annual cost of PRRS dropped nearly $100...
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Lessons learned from PRRS outbreak investigations
Nov 10, 2017Jennifer GrullonComments Off on Lessons learned from PRRS outbreak investigations
By Derald Holtkamp, MS, DVM, Iowa State University, College of Veterinary Medicine, Ames, Iowa
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Why PRRS elimination doesn’t work in some herds
Oct 25, 2017Jennifer GrullonComments Off on Why PRRS elimination doesn’t work in some herds
Amber Stricker, DVM, discusses reasons why successful PRRS elimination isn’t always achieved in some herds.
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Mycoplasma hyopneumoniae: Elimination or control?
Oct 13, 2017Jennifer GrullonComments Off on Mycoplasma hyopneumoniae: Elimination or control?
By Clayton Johnson, DVM Carthage Veterinary Service Integrated Veterinary Network
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Taking oral-fluid samples for PRRS: How many and when?
Sep 18, 2017Jennifer GrullonComments Off on Taking oral-fluid samples for PRRS: How many and when?
Oral-fluid sampling can provide a simple, reliable way to surveil for porcine reproductive and respiratory syndrome virus (PRRSV), Marisa Rotolo, DVM, of Iowa State University, reported at the 2017...
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Biosecurity, Global TOP NEWS, Growing Pigs, Interviews, PGT GLOBAL, PGT US, Podcasts, PRRS, TOP NEWS, Videos
What’s the best PRRS strategy for your herd?
Aug 07, 2017Jennifer GrullonComments Off on What’s the best PRRS strategy for your herd?
Every year, porcine reproductive and respiratory syndrome (PRRS) infects an estimated 25% to 45% of sow herds in the US, according to Clayton Johnson, DVM, Carthage Veterinary Clinic, Carthage,...
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Updated PRRS research book now available online
Jun 03, 2017Jennifer GrullonComments Off on Updated PRRS research book now available online
A new guide on managing porcine reproductive and respiratory syndrome (PRRS) is now available online from the National Pork Board.
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Iowa veterinarian sees benefits to early PRRS vaccination
May 30, 2017Jennifer GrullonComments Off on Iowa veterinarian sees benefits to early PRRS vaccination
It takes 3 to 4 weeks for pigs to develop immunity against PRRSV after vaccination with a modified-live vaccine, so vaccinating early gives them the time they need to develop immunity by nursery age,...
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Growing Pigs, Gut Health, Interviews, PGT GLOBAL, PGT US, Podcasts, PRRS, Respiratory Health, Videos
Opportunistic pathogens prey on newly weaned pigs infected with a primary virus
May 30, 2017Jennifer GrullonComments Off on Opportunistic pathogens prey on newly weaned pigs infected with a primary virus
Around 50% of pigs weaned today likely are infected with a primary viral pathogen, like porcine reproductive and respiratory syndrome (PRRS) or swine influenza, reported Cameron Schmitt, DVM,...
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Positive-pressure ventilation makes a comeback to reduce PRRS transmissions
May 30, 2017Jennifer GrullonComments Off on Positive-pressure ventilation makes a comeback to reduce PRRS transmissions
Producers looking for ways to reduce porcine reproductive and respiratory syndrome (PRRS) find positive-pressure ventilation with some modifications works, especially in older building, according to...
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Unloading docks at processing plants appear to be source of PRRSV
May 26, 2017Jennifer GrullonComments Off on Unloading docks at processing plants appear to be source of PRRSV
Unloading docks at processing plants may be one way that livestock trailers become contaminated with porcine reproductive and respiratory syndrome virus (PRRSV).
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Oropharyngeal swabs offer alternative for PRRSV diagnosis in wean-age pigs
May 19, 2017Jennifer GrullonComments Off on Oropharyngeal swabs offer alternative for PRRSV diagnosis in wean-age pigs
Taking oropharyngeal swabs — that is, samples from the tonsils — appears to be an effective alternative means for detecting PRRSV in wean-age pigs, especially when the prevalence of infection is...
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It’s cold outside. Have you PRRS-proofed your herds?
May 02, 2017Jennifer GrullonComments Off on It’s cold outside. Have you PRRS-proofed your herds?
Cold weather means closer confinement and a greater risk of porcine reproductive and respiratory syndrome virus (PRRSv). A leading PRRS expert recommends ways to keep this common and costly disease...