ABSTRACT
Objective:To investigate the true incidence of Bacillus cereus (B. cereus) in food and children diarrhea cases. Methods:A total of 110 samples of various dairy products such as raw milk, long life pasteurized milk, yoghurt and infant powdered milk formulas, raw rice, and feces were examined for the presence of B. cereus by selective plating on mannitol-egg-yolk-polymyxin agar. Confirmation of B. cereus was carried out by biochemical tests and PCR. Identification of non-B. cereus isolates was carried out by 16S rDNA sequencing. Antimicrobial susceptibility was done by disk diffusion method. Results:Overall 35 samples (31.8%, n=110) yielded Bacillus-like growth. Of which 19 samples (54.28%) were positive for B. cereus. All isolates were positive for enterotoxin production. No psychrotolerant B. cereus strains were detected in all samples. All B. cereus isolates were resistant to penicillin G, but susceptible to vancomycin, erythromycin and clindamycin. Conclusions:The results of this study confirm the importance of including B. cereus in disease control and prevention programs, as well as in routine clinical and food quality control laboratories in both Saudi Arabia and Egypt.
ABSTRACT
Out of 386 work injuries that occurred in an engineering establishment over a period of six years, 203 injuries were due to the nature of the work while 183 injuries were due to mistakes done by the workers. The average cost of a single work injury was about 122L.D. and a total of 25216 work days were lost because of these injuries. Most of the injuries occurred among workers under 29 years of 890, with less than three years of service. It was found that the number of injuries was more among workers Of low educational standard There was a significant difference in accident occurrence among the months of the year [P < 0.05], days of the week [P <0.01] and the hours of the day [P <0.01]. The study recommended heath and safety program to the establishment