PRRS: future lines of research
Dr. Nauwynck reviews with us the main gaps in PRRSV research and how he envisions the future of this disease regarding diagnostic technologies and vaccination strategies.
articles about PCV2 in Articles
Viral pneumonia in pigs
A discussion of the different micro and macroscopic lesions caused by PRRSV, PCV-2, swine flu virus, and porcine respiratory coronavirus.
What has changed about porcine circovirus epidemiology?
The world of viruses is dynamic. Their epidemiology varies according to our actions. New strains and new serotypes appear. Are we prepared?
20 years of porcine circovirus type 2: what has changed?
In the years since the PCV-2 vaccine was introduced to solve the enormous problem caused by circovirus, what do you think has changed and how does it affect farms?
Fecal transplantation and prevention of porcine circovirus associated disease
The gut microbiome provides an alternative tool for control and prevention of diseases.
The microbiome and viral infections
This article relates different microbiome profiles to greater or lesser severity in clinical signs, lesions and viral load in a co-infection with PRRS and PCV2 viruses, opening a window of opportunity.
Global molecular genetic analysis of PCV2
The current diagnostic tests are very powerful, allowing us to detect even small changes in the genome of a virus, but what do they tell us?
The impact of intensive vaccination on PCV2 epidemiology
The decrease in PCV2a and PCV2b genotypes over time and the increase in PCV2d in 2012 may be due more to other, unknown, factors than to immunological selection resulting from PCV2a-based vaccination.
Sampling for the detection of agents of the porcine respiratory disease complex: Bronchoalveolar lavage or bronchial scraping?
Many veterinarians find bronchial scraping a less invasive and, above all, simpler sampling method than bronchoalveolar lavage.
Infectious agents identified in aborted porcine foetuses
PCV-2 and PRRS are the most common infectious causes of abortions. Most abortions are also found to occur during the colder months, regardless of their cause.
The impact of 6 years of PCV2 vaccination on viral presence and immunity in pigs across the United States
PCV2 vaccination is nearly universal. Has viral presence decreased after 6 years of vaccination? Could vaccination policies be changed?
Health protocols for replacements: respiratory and systemic diseases (2/3)
We are talking about PRRSV, M. hyo, PCV2, App and swine influenza virus.
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.
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.