David Burch

Veterinary consultant David Burch is principal of Octagon Services Ltd, based in the UK, and has been actively involved in applying the science of the PCV2 infection to the practical control of the disease. [email protected]

Pig antimicrobials update—what is going on in EU?

Antimicrobial agents remain an issue in the EU because despite the in-feed ban of growth promoting antibiotics, total usage of such products remains high, according to authorities in many countries. The following interview highlights the latest thinking and developments on this topic.

Treatment instead of prevention may actually increase antibiotic resistance.

Preguntas y respuestas: vacunación para derrotar al PCV2

Respuestas sobre el control de las enfermedades relacionadas al circovirus mediante la vacunación, hoy en día y en el futuro

Q&A: Vaccinating to beat PCV2

Answers on the control of circovirus-related diseases by the use of vaccination, today and in the future

Circovirus: Now for the good news

Encouraging results from North America on PCV2 vaccination and valuable European updates on immunity to the virus are reported to a major veterinary meeting held in the USA

Problem solved? Real hope that wasting disease may finally be controlled has been raised by the new PCV2 vaccines now emerging to fight the diseases associated with porcine circovirus infections.

Circovirus sheds through the nose

Ideas over PMWS control may have to be revised in the light of new research findings

Historic Krakow in Poland: The setting of a mid-2007 international veterinary conference that delivered an important update on routes of circovirus infection in pigs.

Changing picture on circo diseases

Annual meeting of American swine veterinarians hears more reports about diseases associated with porcine circovirus PCV2

A pig affected by the skin condition PDNS (porcine dermatitis and nephropathy syndrome) linked to circovirus infection.

Is this the new way to look at circo?

As affected herds find that problems from a circovirus infection can occur later in the production cycle than was seen originally, field trial results hold out the promise that PMWS and related diseases associated with PCV2 can be controlled by vaccination.

Figure 1: Mortality of pigs by age due to PMWS (based on Madec and others, 2000).

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