Piglet vaccination

To vaccinate piglets, two important points must be considered in order to choose the best moment …

Impact of PRRSv genetic diversity

The high PRRS virus diversity has an important impact in diagnosis, immune response: vaccines, protection…

Practical approach to diagnosis

ELISA and PCR in combination can be used not only to detect an infection, but also to determine approximately…

THE PRRS EXPERTS ANSWER

Which is the best way to do the PRRS vaccination: blanket vaccination 3 times a year or weekly vaccination?

Which is the best way to do the PRRS vaccination: blanket vaccination 3 times a year or weekly vaccination?...

When talking about PRRS vaccination, it’s always better to do a blanket vaccination 3 times a year. The reason of this is directly... Read More →
Externally purchased gilts were PCR PRRS virus positive at destination farm however previous test in the source herd were negative. Could the transport stress induce viremia in latent infection? What about the possibility of infection during transport (3 hours driving and the car was disinfected)?

Externally purchased gilts were PCR PRRS virus positive at destination farm however previous test in the source herd were neg...

The PCR technique is usually very sensitive and it detects very small amounts of PRRS virus in blood or other samples, but there... Read More →
Does the pathogenicity of PRRS virus depend on genotype? Does only NA type PRRS MLV can offer heterologous protection against both genotypes (NA and EU)?

Does the pathogenicity of PRRS virus depend on genotype? Does only NA type PRRS MLV can offer heterologous protection against...

In general, PRRSV2 strains (formerly North American type or genotype II) are more virulent than subtype 1 PRRSV1, that is, the formerly designated... Read More →