Application of bacteriophages to control intestinal Escherichia coli O157:H7 levels in ruminants

Article Abstract:

The characterization of O157-specific lytic bacteriophage KH1 and phage SH1 were tested, alone or in combination, for reducing intestinal Escherichia coli O157:H7 in animals. This phage therapy reduced the average number of Escherichia coli O157:H7 CFU among phage-treated steers compound to control steers, but did not eliminate bacteria from the majority of steers.

Genetic aspects, Bacteriophages, Ruminants

---

Escherichia coli O157:H7 in environments of culture-positive cattle

Article Abstract:

The distribution and survival of Escherichia coli O157:H7 in the immediate environments of individually housed, experimentally inoculated cattle by systematically culturing feed, bedding, water, haircoat, and feed bunk walls for E. coli O157:H7 for 3 months is investigated. Survival was longest in feed at room temperature, but bacterial counts decreased over time.

Vaccination of animals, Animal vaccination

---

Rectal administration of Escherichia coli O157:H7: novel model for colonization of ruminants

Article Abstract:

A novel rectal swab administration of Escherichia coli O157:H7 was developed to establish experimental colonization of ruminants with this bacterium. The rectal swab administration of E. coli O157:H7 resulted in a consistent colonization of cattle and was superior to the traditional oral dosing and to the Trojan calf methods of creating experimental infections.

Analysis, Risk factors, Rectum, Medication by, Rectal medication

Similar abstracts:

• Abstracts: Abundance in sewage of bacteriophages that infect Escherichia coli O157:H7 and that carry the Shiga toxin 2 gene
• Abstracts: Enzymatic combustion of aromatic and aliphatic compounds by manganese peroxidase from Nematoloma frowardii. The coprophilous mushroom Coprinus radians secretes a haloperoxidase that catalyzes aromatic peroxygenation
• Abstracts: Chemostat enrichments of human feces with resistant starch are selective for adherent butyrate-producing clostridia at high dilution rates
• Abstracts: Butyrate specifically down-regulates Salmonella pathogenicity island 1 gene expression. Medium-chain fatty acids decrease colonization and invasion through hilA suppression shortly after infection of chickens with salmonella enterica serovar endteritidis

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.