As part of the UW Milk Quality continuing series on mastitis pathogens, Dr. Pamela Ruegg introduces an important organism called E. coli. E. coli is one of the causes of clinical mastitis occurring in dairy cattle, and in this episode Ruegg discusses its diagnosis, treatment and prevention. For more information on E. coli, mastitis control and other milk quality issues check out milkquality.wisc.edu.