Low numbers of intestinal Shiga toxin-producing E. coli correlate with a poor prognosis in sheep infected with bovine leukemia virus
Journal of Veterinary Science
;
: 375-379, 2008.
Article
in English
| WPRIM
| ID: wpr-65392
ABSTRACT
Healthy ruminants carry intestinal Shiga toxin (Stx)-producing Escherichia coli (STEC). Stx has antiviral activities in vitro and STEC numbers correlate with reduced early viremia in sheep experimentally infected with bovine leukemia virus (BLV). This study assessed the impact of intestinal STEC on BLV-induced disease for one year post-BLV-challenge. High STEC scores (CFU/g feces x frequency of STEC-positive samples) correlated with good health, whereas poor weight gain, distress, and tumor development occurred only among animals with low STEC scores. STEC carriage was associated with increased percentages of B cells in peripheral blood.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Sheep Diseases
/
Sheep
/
Deltaretrovirus Infections
/
Leukemia Virus, Bovine
/
Shiga-Toxigenic Escherichia coli
/
Intestines
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Journal of Veterinary Science
Year:
2008
Type:
Article
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