This weeks episode is a bit different from usual.  I don't have a guest this week, but I'll be presenting an outbreak from our Disease Investigation Unit case files.  This case was also presented as part of a series of cases in a webinar organized by the Canadian Animal Health Surveillance System:  “ Beef Cattle Vaccines: the Good, the Bad, and The Ugly” webinar with Drs. John Campbell, Tim Nickel, Bruce Kostelansky, and Eugene Janzen.  You can access that webinar here for more information about core vaccines and vaccination issues:  https://youtu.be/nRYHzysFHtE