Most of us are familiar with vaccines from inoculations we receive in childhood. It is well-known that vaccination has saved millions of lives, but few stop to think about the impact of vaccines on our food supply.

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Just as we need to be vaccinated to prevent infections from spreading, so do animals. Livestock are prone to disease, especially in close quarters like a barn or feedlot. In 2007 in Canada, the sales of biological animal health products like vaccines were worth $114 million. Getting these products to market is a multi-faceted process that takes into consideration their effect on animals, humans, and the environment.

Many different ...

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