T Zhao et al.
Applied and environmental microbiology, 61(4), 1290-1293 (1995-04-01)
The prevalence of Escherichia coli O157:H7 in dairy herds is poorly understood, even though young dairy animals have been reported to be a host. From February to May 1993, 662 fecal samples from 50 control herds in 14 states, and