We are most grateful to Swiss veterinary practitioner Dr. Ueli Zellweger, who offers a thumbnail sketch of BCG, the vaccine with which Defra hope to stem the tide of badgerTB (and thus cattle casualties, camelids, cats and dogs, goats, sheep and pigs
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Read the complete post at http://bovinetb.blogspot.com/2009/07/bcg-what-it-is-how-it-works.html