Johnson: Five steps for porcine circovirus control
Jul 22, 2021Jennifer Grullon
Some breed-to-wean farms that have been vaccinated for porcine circovirus (PCV) have experienced breakdowns in their control of the virus. Clayton Johnson, DVM, outlines his top five steps for...
High prevalence of PCV2 recombinants highlights importance of broad vaccine coverage
May 22, 2021Jennifer Grullon
DISCOVERIES, Issue 21: A recent analysis of porcine circovirus type 2 (PCV2) genetic sequences shows that up to 25% of field strains are recombinants of diverse genotypes, highlighting the importance...
Processing fluids provide an option to monitor PCV2 and PCVAD
May 16, 2021Jennifer Grullon
Effective PCV2 control relies on vaccination of healthy pigs before they become infected. This goal cannot be accomplished in unstable herds whose sows give birth to viremic pigs.
Comparing PCV2 gilt vaccination protocols and progeny status
May 13, 2020Jennifer Grullon
Porcine circovirus type 2 is the principal etiological agent of porcine circovirus associated disease (PCVAD), which can cost producers an estimated $3 to $4 per pig.
It’s back: Clinical outbreak of PCV2 in genetic herds reported
Sep 16, 2019Jennifer Grullon
A clinical outbreak of porcine circovirus type 2 (PCV2) occurred this past winter in otherwise healthy, well-vaccinated herds, Clayton Johnson, DVM, of Carthage Veterinary Service, told Pig Health...
Processing fluids’ effectiveness in monitoring PCV2 in sow herds
Sep 11, 2019Jennifer Grullon
Vaccines have provided effective control options for PCV2, but vertical transmission remains a challenge for some farms.
Processing fluids hold promise for PCV2 testing on sow farms
Aug 06, 2019Jennifer Grullon
Understanding the pathogen status of a sow herd helps determine the prevention, control and treatment options to protect piglets as they grow. For PCV2 there is no treatment; however, vaccination is...
The changing face of PCV: Virus experts compare notes on evolving pathogen in US swine herds
Apr 17, 2019Jennifer Grullon
Clinical disease due to porcine circovirus type 2 (PCV2) has been dramatically reduced thanks to vaccination, but concern remains about the persistence of PCV2 subclinical infection, even in...
Two-dose Fostera® Gold PCV MH regimen yields performance advantages
Mar 15, 2019Jennifer Grullon
DISCOVERIES, Issue 16: Pigs in a study that received two doses of Fostera® Gold PCV MH, the new Zoetis vaccine for PCV2 and M. hyo, had numerically fewer reactions, less morbidity, less mortality.
Tale of two viruses: PCV3 impact unknown while PCV2 continues to evolve
Feb 16, 2019Jennifer Grullon
Genetic sequencing demonstrates that porcine circovirus type 3 (PCV3) is significantly different from PCV2, but otherwise little is known about the virus.
Epitope-comparison study illustrates broad coverage of Fostera Gold® PCV MH against PCV2 viruses
Aug 15, 2018Jennifer Grullon
DISCOVERIES, Issue 4: Swine disease specialists speculated that a PCV2 vaccine containing two genotypes — PCV2a and PCV2b — would significantly improve the coverage provided against PCV2...
PCV3: A challenge independent from PCV2
Aug 12, 2018Jennifer Grullon
Anyone involved in raising pigs is aware of PCV2, but new on the scene is porcine circovirus type 3 (PCV3). Although the two viruses are both circular DNA viruses in the same family, they are...
Don’t get complacent with PCV2 protection
Jun 28, 2018Jennifer Grullon
Vaccines for porcine circovirus type 2 (PCV2) currently do an adequate job of cross protecting against new genotypes of the virus, but swine veterinarians and producers shouldn’t let their guard...
PCV2: Future considerations for an evolving virus
Jun 24, 2018Jennifer Grullon
Porcine circovirus type 2 (PCV2) may not be a new virus challenge for pork producers and swine veterinarians, but it remains a constant challenge.
Large field trial showed Fostera Gold® PCV MH was effective against prevalent PCV2d genotype
Apr 20, 2018Jennifer Grullon
DISCOVERIES, Issue 3: A large, commercial field trial conducted with Fostera® Gold PCV MH showed it was also effective against PCV2d, the most prevalent genotype of the virus circulating among US...
Pigs vaccinated with Fostera®PCV MH equally protected, weighed nearly 8 pounds more in large comparison trial
Mar 21, 2018Jennifer Grullon
DISCOVERIES, Issue 1: Pigs vaccinated with Fostera® PCV MH were equally protected against porcine circovirus (PCV) type 2d as well as Mycoplasma hyopneumoniae (M. hyo) and weighed 7.78 pounds more...
Colostrum may be best sample for PCV2 on sow farms
Jun 20, 2017Jennifer Grullon
Colostrum may be the best sample to test for determining whether porcine circovirus type 2 (PCV2) is present in sow herds, according to researchers at Iowa State University (ISU).
Using diagnostics to optimize PCV2 vaccination
May 02, 2017Jennifer Grullon
By Don McDermid, DVM, Swine Veterinary Services Manager, Zoetis,
Kirkland, Quebec, Canada
