National reduction in PCV2 prevalence following introduction of vaccination
Since the introduction of PCV2 vaccines in 2006, viral presence and viral loads have greatly decreased, and a genotypic shift dominated by PCV2b has occurred.
Page 3 of articles about PCV2
Comparative efficacy of concurrent administration of a PCV2 vaccine plus a PRRSV in pigs challenged with both viruses
Under the conditions of this study, it makes no difference to protection whether PCV2 and PRRSV vaccines are administered concurrently. Concurrent vaccination is efficacious for controlling co-infection with PCV2 and PRRSV.
The challenge of Porcine Circovirus type 2 (PCV2) intra-specific taxonomic classification
All available vaccines in the European and North-American market are based on PCV2a genotype, while the most prevalent ones are PCV2b and PCV2d ones. Although significant level of cross-protection among these three genotypes has been demonstrated, it would be interesting to assess if vaccine efficiency would be equivalent in front of all these different genotypes.
Clinical case: Problems with Salmonellosis and PCV2-associated disease in nursery and early fattening
We got a call to visit a fattening farm where 7-week-old piglets presented meningitis and diarrhoea after weaning, with a mortality rate of 5% three weeks after weaning.
Development and application of an indirect ELISA for the diagnosis of PCV-like virus P1
The indirect ELISA that we developed with rctCap, the recombinant capsid fragment containing the 217–342 nt repeat domain, was sensitive, specific, and suitable for the large-scale detection of P1 infections in swine.
Effect of PCV2 infection on reproduction: disease, vertical transmission, diagnostics and vaccination
The immune status of farms is quite possibly different from the one they had before piglets mass vaccinations.
How PCV2 vaccines work
Despite not having a consistent post-vaccination serological reaction, vaccinated animals behave differently from unvaccinated animals under field conditions.The article explains why vaccines offer protection.
Oral vaccine platform based on the yeast Saccharomyces cerevisiae to combat PCV2
The results presented here demonstrate a possible use for recombinant S. cerevisiae expressing viral proteins as an oral vaccine against PCV2.
A two-year follow-up study of the PCV2 status of a Danish pig herd that was initially assumed to be PCV2-free
The results from this herd indicated that PCV2 vaccination may reduce the PCV2 infection level even during an acute outbreak of PRRS, but the results also showed that PCV2 vaccination does not eradicate the virus from the herd. Further studies are needed to draw general conclusions on this matter.
Which is the best age for piglet PCV2 vaccination?
This article deals with the factors to be considered for deciding the optimal time of vaccination against PCV2 and shows the results of a study that evaluates the efficacy of different vaccination programs in PCV2 subclinically infected piglets.
Virological and serological characterization of vaccinated and non-vaccinated piglet subpopulations coming from vaccinated and non-vaccinated sows
The defined subpopulations of piglets were observed in all experimental groups (NV–NV, NV–V, V–NV and V–V) although in variable percentages.
How does PCV2 contribute to enteric problems?
Recently, PCV2 has been suggested as a pathogen able to induce diarrhoea in pigs, and PCV2-enteric disease (PCV2-ED) as a separate entity within porcine circovirus diseases (PCVDs) has been proposed.
Chile: the pig sector improves in matters of animal health
The Chilean pig sector is still improving in the strengthening of animal health through the implementation of prevention, control and eradication programmes.
Fatal disease associated with Swine Hepatitis E virus and Porcine circovirus 2 co-infection in four weaned pigs in China
We speculate that co-infection with PCV2 and HEV may bring some negative effect on pig production and recommend that more attention should be paid to this phenomenon.
Russia/ Canada: talks on cooperation in veterinary surveillance
The talks were devoted to the discussion of vital issues related to cooperation between the countries in veterinary surveillance and assurance of biological safety of mutually delivered animal products.
Origin of PCV2 type 2 from swine affected by PCV2-associated diseases in Croatia
PCV2b was the predominant genotype in Croatia and has been linked to international trade as a route of introduction.