From 450 aerobic cultures of children stools specimens 212 Escherichia coli strains have been isolated: 122 serotypes were enteropathogens (of these 65 were pure cultures): it can not be concluded that only these strains are responsable of gastroenteric symptoms.

Acute Disease↗

PubMedDate not supplied

[Morph-physiological researches on Schizomycetes. Morphogenesis and cytoarchitecture of the microbial colony. II : B. cereus].

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Bacillus cereus↗

PubMedDate not supplied

[Morphological and physiological studies on schizomycetes. Morphogenesis and cytoarchitecture of microbial colony. III. B.subtilis].

The B. subtilis exhibits a morphogenetic mechanism which is different from that observed in the other bacilli examined here. In fact it is distinguishable for the compactness of cellular bundles and the precociousness of the degenerative phenomena which render unrecognizable the internal structure of the colony even before the third day of growth.

Bacillus subtilis↗

PubMedDate not supplied

[Morphological and physiological studies on schizomycetes. Morphogenesis and cytoarchitecture of microbial colony. IV. B.megaterium].

Unlike B. anthracis and B. cereus, the B. megatherium shows a disordered cytoarchitecture. Since the factors conditioning the growth of the colonies are the same, this is due to a different parting mechanism of daughter cells.

Bacillus megaterium↗

PubMedDate not supplied

[Pollution by mites and/or mold spores in work environments and the risk of occupational respiratory pathology].

In recent years the measurement of mold spore concentrations in working environments where workers spend long periods of time has acquired considerable importance because of the diffusion of diseases caused by fungi. On this basis, the aim of the research was to evaluate the level of environmental fungal pollution and contamination by mites in three factories producing seasoned foods, i.e., hams, sausages and cheeses. We also studied the occurrence of fungal species in the upper respiratory tract of workers operating in the washing and brushing areas, which was compared with the environmental concentrations in these areas, where contamination with fungal spores was visibly high. The results showed high and widespread fungal pollution in most of the working environments sampled and a significant presence of the same species in the upper respiratory tract of the workers. The data obtained indicate that the environments sampled can constitute a possible health risk factor for workers.

Air Microbiology↗