articles about PCV2 in Articles

Professor Nauwynck has been researching PCV2 virus since the emergence of PCV2-associated diseases. PCV2 caused a serious crisis in global swine health that was ultimately addressed through the development and mass deployment of effective PCV2 vaccines. He is an excellent connoisseur of this small virus that continues to surprise us.

Hans Nauwynck defines himself as a veterinary virologist, a person who works in a laboratory setting, doing precise work, like a surgeon, aiming to gain a better understanding of how animal viruses interact with their target cells. But it is much more. His deep understanding of the biological behavior of viruses allows him to fluently explain many of the “whys” that are so important for a better understading of the pathogenesis of viral diseases and the development of effective control strategies.

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.

A discussion of the different micro and macroscopic lesions caused by PRRSV, PCV-2, swine flu virus, and porcine respiratory coronavirus.

The world of viruses is dynamic. Their epidemiology varies according to our actions. New strains and new serotypes appear. Are we prepared?

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?

The gut microbiome provides an alternative tool for control and prevention of diseases.

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.

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 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.

Many veterinarians find bronchial scraping a less invasive and, above all, simpler sampling method than bronchoalveolar lavage.

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.

PCV2 vaccination is nearly universal. Has viral presence decreased after 6 years of vaccination? Could vaccination policies be changed?

We are talking about PRRSV, M. hyo, PCV2, App and swine influenza virus.

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.

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.