Page 5 of articles about vaccine in Articles

Frequent deaths and cases of disease with typical “diamond-skin” lesions appeared in fattening pigs although they were vaccinated against Erysipelothrix rhusiopathiae.

What further increases profitability in pig production is not minimizing costs, but maximizing revenue.

PCV2 vaccination of the gilts prior to insemination with PCV2 spiked-semen showed a clear decrease of viral load in the gilts as well as a much lower viral excretion that were compatible with foetus protection.

Is the right strategy to get a farm stable, that is, control clinical signs reducing the economic impact of the disease; or should a farm adopt strategies to go “negative”? As for other questions in the epidemiological field, our answer is “it depends”.

The virus is highly resistant in the environment, showing also high resistance to chemical and thermal treatments.

How to administer drugs in order to optimize the speed of action, the efficiency and the financial cost.

Might be there is a little doubt nowadays on the beneficial clinical and economic effects of PCV2 vaccination in subclinical infections in piglets, but… which is the role that sows play in the whole picture?

Resolving the basis of viral and host variation will require identification and characterization of key B- and T-cell epitopes conserved among diverse PRRSV, and of the molecular and structural details of key effector antibodies, T-cell antigen receptors, and MHC molecules that mediate broad, cross-protective immunity.

Although a commensal, M. hyorhinis may cause serious systemic disease through mechanisms that are not fully understood.

The most effective way of avoiding the production losses associated with the PCV2 consists in avoiding the appearance of the viraemia by inducing a passive or an active immunity that minimizes the circulation of the virus in the farm.

In 1996, the NFMDTF drafted a national plan to address the 1995 FMD epidemic wherein 98,000 animals were reported to have been affected.

The FMD Eradication Project in the Philippines has formally ended but activities have been sustained even after obtaining FMD-freedom in Luzon having no clinical cases for 5 years with the last outbreak recorded in December 28, 2005.

One issue is to overcome maternal immunity, which is true for all PCV2 vaccines in the market, and another is whether the most from these vaccines is achieved independently of the PCV2 antibody titre at vaccination

The most common problems are due to interference with maternal antibodies and coincidence of vaccination with a recirculation of PRRS: viremic animals.

In the first part of management of the breeding chart we basically looked at how it can help us to control returns. In this second part we will look at other applications.

Most of the outbreaks detected in pigs have resulted from infections transmitted to the pigs by humans or have no known cause.