Bacillus cereus infections

Bacillus cereus infections.

Bacillus cereus infections The importance of Bacillus organisms, particularly B. cereus, in local infections has been largely overlooked because they are commonly encountered as contaminants in specimens or cultures. Turnbull et al. (J Clin Pathol 1979 ;32 :289-93) reported severe infections with B. cereus and prompted me to review the recent isolates in this laboratory. In the nine months, Nov...

Bacillus cereus endophthalmitis.

Endophthalmitis, of any aetiology, is a potentially devastating ocular infection. Few patients are able to maintain good visual acuity. Many retain only navigational vision and a significant number require evisceration or enucleation. 2 The incidence ofendophthalmitis after trauma has been estimated to occur in 2-7% of cases.3 Various organisms have been implicated but, in recent years, Bacillu...

Bacillus cereus spores

In some Bacillus species, manganese levels influence the resistance properties of spores. To determine if this was true for Bacillus cereus, bacteria were sporulated with different MnCl2 concentrations resulting in spores with 30-fold differences in core Mn 2+ levels. Spores with different Mn 2+ levels displayed no differences in resistance to dry heat, UV radiation, γ-radiation, or hydrogen pe...

Modelling Bacillus cereus growth.

The aim of this study was to model the growth, in a model system, of toxigenic strains of Bacillus cereus as a function of temperature, pH and water activity. Optical density (OD) values were transformed into numbers of colony-forming units (CFU) by the use of a 'calibrating' relation. The growth curves were then fitted to the Gompertz function which allowed the estimation of the lag-time (lamb...

Bacillus cereus gastroenteritis