| shiga toxin-producing escherichia coli in sheep and pre-slaughter lambs in eastern australia. | sheep and lambs from 14 farms in southern queensland and one from central new south wales were surveyed to determine the prevalence of shiga toxin-producing escherichia coli (stec). stec, isolated from 45% of 144 sheep faeces collected on the farms and 36% of 72 lamb faeces from abattoir yards, were tested for the presence of genes encoding virulence factors. most (64%) of the 117 stec isolates contained shiga toxin 1 and 2 genes, 22% contained those encoding shiga toxin 1, and 14% contained gen ... | 1999 | 10347885 |
| microbial exposure assessment of an urban recreational lake: a case study of the application of new risk-based guidelines. | new who and australian guidelines promote a risk-management approach for minimising exposure to pathogens in recreational waters. between 2003 and 2005, they were applied to lake parramatta (10 ha, 450 ml), a potential recreation site in sydney, australia. a three stage approach was developed involving (1) initial suitability assessment using historic data, (2) revised suitability assessment based on new data and (3) characterisation of hazardous (especially wet weather) events. contrary to the ... | 2006 | 17037160 |