| campylobacter enteritis in johannesburg. | in order to establish a reasonable protocol for a diagnostic laboratory we conducted a survey during which we confined the routine culture of stool samples for campylobacter fetus to two groups--all infants under 2 years of age, and older children and adults with obviously diarrhoeic stools. camp. fetus was isolated from 100 of 2323 stool specimens (4,3%). this is within the 3 - 8% isolation rates previously reported from surveys in which all specimens were cultured. camp. fetus isolates represe ... | 1981 | 7455853 |
| bacterial populations associated with a sorghum-based fermented weaning cereal. | microbiological surveys, to determine the quality and safety, were conducted on 45 sorghum samples comprising dry powders (n = 15) and corresponding fermented (n = 15) and cooked fermented porridge (n = 15) samples collected from households in an informal settlement of the gauteng province of south africa. mean aerobic plate counts, gram-negative counts and bacterial spore counts of sorghum powder samples decreased in fermented and cooked fermented porridge samples. however, mean lactic acid bac ... | 1999 | 10477073 |
| microbiological quality and safety of ready-to-eat street-vended foods in johannesburg, south africa. | fifty-one ready-to-eat street foods, 18 dishwater, and 18 surface swab samples were collected from six vendors in johannesburg, south africa. food temperatures were recorded at the time of sampling. standard methods were used to determine aerobic plate counts (apcs), spore counts (scs), and enterobacteriaceae counts (ecs) for food samples as well as coliform counts (ccs) for water and swab samples. in addition, petrifilm escherichia coli count (pc) plates were used for the enumeration of colifor ... | 1999 | 10571317 |
| microbiological hazard identification and exposure assessment of street food vending in johannesburg, south africa. | one hundred and thirty-two samples of beef, chicken, salad and gravy were collected from two street vendors over eleven replicate surveys to assess microbiological safety and quality. for each food type samples were collected during preparation and holding. dish water was also collected and food preparation surfaces swabbed during preparation and display. standard methods were used to determine aerobic plate counts, enterobacteriaceae counts, coliform counts and spore counts. six hundred and sev ... | 2000 | 11078164 |
| antimicrobial susceptibility in thermophilic campylobacter species isolated from pigs and chickens in south africa. | campylobacter jejuni is one of the leading causes of sporadic food-borne bacterial disease in humans. in intensive poultry and pig rearing systems the use of oral antibiotics is essential to maintain health. consequently, there is a high risk for the thermophilic campylobacter jejuni and c. coli resident in the intestinal tract of food animals to develop resistance to commonly used antibiotics. contamination of meat or eggs with pathogenic strains of resistant campylobacter could, therefore, res ... | 2010 | 21526738 |