Wc. Cray et al., EFFECT OF DIETARY STRESS ON FECAL SHEDDING OF ESCHERICHIA-COLI 0157-H7 IN CALVES, Applied and environmental microbiology, 64(5), 1998, pp. 1975-1979
Two groups of calves were subjected to dietary stress by withholding o
f food beginning 1 or 14 days after inoculation with 10(10) CFU of Esc
herichia coli 0157:H7. Following treatment, neither group had a signif
icant increase in fecal shedding of E. coli 0157:H7. A third group of
calves had food withheld for 48 h prior to inoculation with 10(7) CFU
of E. coli 0157:H7. These calves were more susceptible to infection an
d shed significantly more E. coli 0157:H7 organisms than calves mainta
ined on a normal diet.