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Informe sobre análisis bacteriológico de agua en tambos del sur del país Full text
1975
Laborde , Manrique | Bonilla de Del Baglivi, Mirtha
El decreto del 31 de enero de 1950 reglamentario de las leyes N.°10.707 del 9 de enero de 1946 y N.° 11.030 del 12 de enero de 1948, establecen que para la habilitación de tambos que produzcan leche destinada al consumo de la población, éstos deben contar con agua potable y abundante.
Show more [+] Less [-]Supervivencia de VTEC O157 y no-O157 en agua de bebederos y materia fecal de bovinos Full text
2014
Polifroni, Rosana | Etcheverría, Analía I. | Arroyo, Guillermo H. | Padola, Nora L.
Verotoxin-producing Escherichia coli (VTEC) is the etiologic agent of hemolytic-uremic syndrome (HUS), which typically affects children ranging in age from six months to five years old. Transmission is produced by consumption of contaminated food, by direct contact with animals or the environment and from person to person. In previous studies we determined that the environment of a dairy farm is a non-animal reservoir; thus, we proposed to study the survival of 4 VTEC isolates (O20:H19; O91:H21; O157:H7 and O178:H19) in sterile water troughs and bovine feces by viable bacteria count and detection of virulence genes by PCR. It was demonstrated that the survival of different VTEC isolates (O157 and non-O157) varied in terms of their own characteristics as well as of the environmental conditions where they were found. The main differences between isolates were their survival time and the maximal counts reached. The competitive and adaptive characteristics of some isolates increase the infection risk for people that are visiting or working on a farm, as well as the risk for reinfection of the animals and food contamination.
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