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T Eiguer

Publications and source records attributed to T Eiguer.

25 records · Page 2Linked to original sources
PubMedDate not supplied

[Salmonella taxonomy].

Throughout the years, Salmonella nomenclature has suffered continual revisions, due to the confusion created by the different criteria adopted by the several groups of researchers. At the present time, it is recognized that the genus Salmonella is a single species, composed by seven taxa, with the level of subspecies (subsp.), which can be divided into serovars, described in the Kauffmann-White scheme. The name of four the species type Salmonella is Salmonella enteral sp. nov. nom. rev. The serovar of the taxon I is designated, for instance, Salmonella subsp. I ser. Typhimurium. For the other taxa, less frequent in human or animal pathology, the name of the subsp., followed by the antigenic formula (e.g. Salmonella subsp. IV 50: b-) is used. This criterion has been validated by the International Committee of Systematic Bacteriology and the names of the serovars are included in the Approved Lists of Bacterial Names.

Salmonella↗
PubMedDate not supplied

[Evaluation of the hygienico-sanitary quality of fresh noodles].

Total mesophyllic aerobes (MT), total coliforms (CT), fecal coliforms (CF), Escherichia coli (EC), molds and yeasts (HyL) and Salmonella were studied in 50 samples of fresh noodles (32 to 35% water) prepared with dried or with liquid egg. Values obtained were: (in parenthesis number of positive samples) MT, 10(4) to 10(6) CFU/g (48%). HyL, 10(2) to 10(4) CFU/g (76%). CT, 4 to 100/g (32%) and 460/g (2%). CF, 3 to 10/g (14%) and 21/g (6%). For EC only two samples were positive with 4 and 9/g respectively. The same serovar of Salmonella (S. oranienburg) was detected in 88% of the samples.

Enterobacteriaceae↗
PubMedDate not supplied

[New worldwide Salmonella serovar isolated in a case of diarrhea].

The isolation of a new serovar of Salmonella from fecal material belonging to a child with acute diarrhea in the ville of Orán, province of Salta, is reported. Because of its biochemical characteristics it was classified within the sub-species IV, taxon 5, according to the present nomenclature for this genus, being its antigenic structure 50:b:-(S IV 50:b:-).

Argentina↗
PubMedDate not supplied

[Initial isolation and characterization of Yersinia enterocolitica in human feces in Argentina].

The isolation of Yersinia enterocolitica from a child's feces with an acute diarrhea is reported for the first time in Argentina. The strain was classified as belonging to the biotype 4 of Wauters, serotype O:3, phage type VIII. The virulence-associated test of autoagglutination, calcium dependency and production of heat-stable enterotoxin were positive, whereas neither lethality for the adult mouse by oral route, nor invasiveness by using the Serény test in the mouse, were demonstrated. A plasmid of approximately 40 Mdal was detected. The suckling mouse LD50 was 4.1 x 10(6) cells. These characteristics are in agreement with those reported for most of the Yersinia enterocolitica strains belonging to the same serotype.

Animals↗