hardly any cross-protection between the serogroups. Within the serogroups, there are different serovars, and at this level there is cross-protection. The current vaccine therefore con- tains eight antigens, of which six are against Leptospira sero- groups and the other two against erysipelas and parvovirus.”
Combining vaccines – is that the future of ensuring animal health? “Yes. Convenience as well as animal welfare are helped if we can reduce the amount of times an animal needs to be vacci- nated. Depending on the time and moment of vaccinating, we are developing ready-to-use combinations as well as pos- sibilities for customers to combine vaccines and antigens.”
Does that mean that the triple-action vaccine will be expanded too? “We are still working on that, but yes, in the future further developments can be expected.”
Why is it important to address these health issues while the outside world is screaming for solutions for e.g. PRRS and African Swine Fever? “Of course we work on diseases that bring crisis to the pig
world, but irrespective of that, any good business starts with a healthy sow herd, and the new vaccine fits into that. We currently have a portfolio of 18 vaccines within the Porcilis portfolio and there is more in the pipeline. It is just important to get those basics right. And it’s good to remember that vac- cinating alone is not the answer either – if the hygiene is not optimal, vaccination alone will not solve all problems.”
Is the vaccine available all over the world as from today? “We start off with Europe, as that is where the registration has been completed, followed by Latin America and Asia.”
Last but not least, how much work has gone into the development of this new vaccine? “A lot of people do not realise how big a team is needed to have a vaccine of this size developed. Most work for this virus has been done by two teams, in total 30 persons. The first one, run by Erwin van den Born, zoomed in on parvovirus and the second, headed by Ton Jacobs, focused on the two bacte- rial vaccines. Also included were e.g. the animal services de- partment for the trials and let’s not forget regulatory affairs, our manufacturing departments and quality control. It has been a multi-disciplinary effort.”
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▶PIG PROGRESS | Volume 35, No. 6, 2019
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