Canada completes investigation on 6th cow found to be BSE-positive

Canada's Food Inspection Agency, or the CFIA, has concluded that the country's 6th BSE-positive cow must have contracted the disease in either 1989 or 1990. At this time the cow was very young but because of the cow's age at the time of death -- 16 years -- it was difficult to track data on the cow's early years. This female cow gave birth to two female calves born in 2004 and 2005 but investigators were unable to track them down and thus they are presumed dead. That's according to CIDRAP which also points out something I didn't know; cattle are most susceptible to contracting BSE in the first year of life.