Short communication: Characterization of Shiga toxin-producing Escherichia coli isolated from newborn, milk-fed, and growing calves in Argentina
| Autor: | Daniel Fernandez, Marcelo E. Sanz, Nora Lía Padola, Alberto E. Parma |
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| Rok vydání: | 2012 |
| Předmět: |
Shiga-Toxigenic Escherichia coli
biology Argentina Cattle Diseases Shiga toxin medicine.disease_cause Virology Microbiology Animals Newborn Shiga toxin producing Genetics biology.protein medicine Animals Cattle Animal Science and Zoology Escherichia coli Shiga toxin-producing Escherichia coli Escherichia coli Infections Feces Food Science |
| Zdroj: | Journal of Dairy Science. 95:5340-5343 |
| ISSN: | 0022-0302 |
| DOI: | 10.3168/jds.2011-5140 |
| Popis: | Shiga toxin-producing Escherichia coli (STEC) cause foodborne pathogenic disease that is shed in the feces of cattle. The aim of this study was to evaluate how early young calves are colonized by STEC strains, potentially pathogenic for humans, and the prevalence in different calf categories. From 808 rectal swabs analyzed by PCR, 38% were stx positive. The prevalence in newborn (24 h from birth), milk-fed (2-mo-old), and growing calves (2-8 mo old) were 25, 43, and 58%, respectively. Forty different STEC serotypes were found among isolates from newborn, milk-fed, and growing calves that shed STEC strains potentially pathogenic for humans. The STEC strains could be acquired early from mothers, enabling the infection of other animal categories and confirming the risk to public health. |
| Databáze: | OpenAIRE |
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