J Sobotková

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In Czechoslovakia in addition to the most frequent species of the genus shigella, S. sonnei, and in addition to serovars of S. flexneri which during the years of investigation accounted for 4-40% of all Shigellae a small number of serovars of sub-groups A (S. dysenteriae) and C (S. boydii) were isolated. The European endemities of S. dysenteriae 2, S.(More)
From a sample of non-treated, non chlorinated well water a Yersinia pseudotuberculosis II strain was isolated. The water had been apparently massively contaminated because the strain was isolated from 1 ml of the sample. The serotype II of Y. pseudotuberculosis occurs very rarely as aetiological agent of human and animal infections.
Morphological alterations of HEp-2 and P338D1 cells were detected as result of Yersinia virulent strains action only. A non-virulent strain caused none of these alterations even 24 h post infection (p.i.). The internalization of the bacteria was demonstrated by double fluorescence staining. Adherence and beginning of cell invasion of virulent strains was(More)
Yersinia enterocolitica (Ye) isolates from water (367 strains) and different foods (114 strains) were typed serologically and biochemically. In some samples, especially of water, several Ye serotypes were found simultaneously. A noteworthy finding was Ye 03, biotype 4 in tinned meat paste that had already been on sale without, however, any case of(More)
Of the 96 E. coli strains belonging to 9 enteroinvasive serovars 79 (82.3%) turned out to be sensitive to colicin Js but none of the 115 strains of E. coli isolates from the feces of healthy persons without diarrhoea exhibited this type of sensitivity reaction. Of the colicin Js-sensitive strains, 89.9% (71 out of 79) gave also positive reactions in the(More)
Fourteen of 21 strains isolated from stools, urine specimens and the hospital environment were identified as Kluyvera. All of these 14 strains corresponded with the literary description of the genus Kluyvera and were identical with two reference strains except that one of them failed to utilize sodium acetate within 7 days. One strain (No. 23441) produced(More)
In addition to the predominant Shigella sonnei, also rarely occurring Shigella serovars have been found in Czechoslovakia: 4 serovars of subgroup A (S. dysenteriae 3, 4, 7 and 12) and 11 serovars of subgroup C (S. boydii 2, 3, 5, 7, 9 lactose-positive, 10, 13, 14 aerogenic, mannitol-negative, 15, 16 and the provisional serovar E 16553). First isolations of(More)
The authors describe the biochemical characteristics of two strains described as "SP organism". This microorganism incertae sedis resembles from the biochemical aspect (oxidase+, mannite-, dextrose+ with gas) the species Pasteurella aerogenes; contrary to the latter it does not break down urea and differs also as regards the morphology of colonies, which on(More)