Publications

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an outbreak of infectious hepatitis in commercially reared ostriches associated with campylobacter coli and campylobacter jejuni.a disease causing high morbidity and mortality was observed in young ostriches from six properties in southeast queensland, australia. the disease affected birds from 2-8 weeks of age and was characterised clinically by bright-green urates and pathologically by severe necrotic hepatitis. the liver lesions resembled those of vibrionic hepatitis in other avian species. campylobacter coli was isolated from the livers of affected ostriches from five of the six properties. campylobacter jejuni subsp. ...19989631530
antibiotic resistance in campylobacter jejuni and campylobacter coli isolated from poultry in the south-east queensland region.the aim of this study was to determine the antimicrobial resistance patterns of 125 campylobacter jejuni and 27 campylobacter coli isolates from 39 queensland broiler farms.200717392353
real-time pcr detection of pathogenic microorganisms in roof-harvested rainwater in southeast queensland, australia.in this study, the microbiological quality of roof-harvested rainwater was assessed by monitoring the concentrations of escherichia coli, enterococci, clostridium perfringens, and bacteroides spp. in rainwater obtained from tanks in southeast queensland, australia. samples were also tested using real-time pcr (with sybr green i dye) for the presence of potential pathogenic microorganisms. of the 27 rainwater samples tested, 17 (63%), 21 (78%), 13 (48%), and 24 (89%) were positive for e. coli, en ...200818621865
implications of faecal indicator bacteria for the microbiological assessment of roof-harvested rainwater quality in southeast queensland, australia.the study aimed to evaluate the suitability of escherichia coli, enterococci, and clostridium perfringens for assessing the microbiological quality of roof-harvested rainwater and assessing whether the concentrations of these faecal indicators can be used to predict the presence or absence of specific zoonotic bacterial or protozoan pathogens. from a total of 100 samples tested, 58%, 83%, and 46% of samples were found to be positive for, respectively, e. coli, enterococci, and clostridium perfri ...201020657617
fecal indicators and zoonotic pathogens in household drinking water taps fed from rainwater tanks in southeast queensland, australia.in this study, the microbiological quality of household tap water samples fed from rainwater tanks was assessed by monitoring the numbers of escherichia coli bacteria and enterococci from 24 households in southeast queensland (seq), australia. quantitative pcr (qpcr) was also used for the quantitative detection of zoonotic pathogens in water samples from rainwater tanks and connected household taps. the numbers of zoonotic pathogens were also estimated in fecal samples from possums and various s ...201222020514
weather and notified campylobacter infections in temperate and sub-tropical regions of australia: an ecological study.the relationship between weather and food-borne diseases has been of great concern recently. however, the impact of weather variations on food-borne disease may vary in different areas with various geographic, weather and demographic characteristics. this study was designed to quantify the relationship between weather variables and campylobacter infections in two australian cities with different local climatic conditions.200818804870
low-level fluoroquinolone resistance among campylobacter jejuni isolates in australia.ciprofloxacin-resistant campylobacter jejuni isolates obtained from infected patients in australia have not been detected in studies of isolates from specific geographic areas. the australian government has prohibited the use of fluoroquinolone in food-producing animals. to assess the impact of this policy, we have examined the antimicrobial susceptibility of isolates from 5 australian states.200616619147
risk factors for campylobacter infection in infants and young children: a matched case-control study.campylobacter infection has one of the highest rates of all the notifiable diseases in australia, with a peak in children aged 0-35 months. a matched case-control study was conducted to investigate risk factors for campylobacter infection for children in this age group. eighty-one cases and 144 controls were enrolled in the study that was conducted between 24 january 1996 and 21 january 1997. the following risk factors were found to be independently associated with illness: ownership of pet pupp ...200111811871
an outbreak of campylobacter enteritis on an island resort, north queensland.an outbreak of campylobacter enteritis among staff on a resort island in north queensland is reported. untreated rainwater and food from the staff dining room were initially suspected as possible sources of infection but campylobacter species were not isolated from any environmental samples. faecal contamination was detected in four rainwater tanks. a case control study involved a total of 23 cases (7 confirmed and 16 probable), 3 of whom required hospitalisation. there was a strong association ...199910497833
campylobacter upsaliensis bacteraemia in an aboriginal child. 19948177117
brief note. campylobacter jejuni gastroenteritis in brisbane. 1979460954
isolation of campylobacter jejuni from poultry carcases.campylobacter jejuni was isolated from 94% of chicken carcase rinses collected in a queensland poultry abattoir. direct plating resulted in the isolation of the organism from 84% of the rinses. a further 10% were found to contain c. jejuni by a procedure of selective enrichment and membrane filtration. counts of c. jejuni on the carcases ranged from 0 to 1.1 x 10(5) organisms per carcase.19817342935
health risk from the use of roof-harvested rainwater in southeast queensland, australia, as potable or nonpotable water, determined using quantitative microbial risk assessment.a total of 214 rainwater samples from 82 tanks were collected in urban southeast queensland (seq) in australia and analyzed for the presence and numbers of zoonotic bacterial and protozoal pathogens using binary pcr and quantitative pcr (qpcr). quantitative microbial risk assessment (qmra) analysis was used to quantify the risk of infection associated with the exposure to potential pathogens from roof-harvested rainwater used as potable or nonpotable water. of the 214 samples tested, 10.7%, 9.8% ...201020851954
a study of the foodborne pathogens: campylobacter, listeria and yersinia, in faeces from slaughter-age cattle and sheep in australia.in a study of faeces from 475 slaughter-age cattle and sheep from 19 herds or flocks, campylobacter species (c. jejuni and c. coli) were cultured from all production systems studied and from 73.7 per cent (14/19) of herds or flocks. within individual properties there was a higher prevalence in cattle than in sheep, with campylobacter being most commonly isolated from feedlot cattle. the median prevalences and ranges were: for dairy cattle, six per cent (0-24%), feedlot beef cattle, 58 per cent ( ...200312926738
foodborne disease investigation across australia: annual report of the ozfoodnet network, 2003.in 2003, ozfoodnet conducted enhanced surveillance of foodborne diseases across australia, which covered all states and territories. during 2003, there were 23,250 notifications of eight potentially foodborne diseases, of which 67 per cent and 30 per cent were due to campylobacter and salmonella infections respectively. the most common salmonella serotype was typhimurium, as in previous years. most s. enteritidis were acquired overseas, except for queensland where 52 per cent of infections were ...200415574061
human and bovine adenoviruses for the detection of source-specific fecal pollution in coastal waters in australia.in this study, the host-specificity and -sensitivity of human- and bovine-specific adenoviruses (hs-avs and bs-avs) were evaluated by testing wastewater/fecal samples from various animal species in southeast, queensland, australia. the overall specificity and sensitivity of the hs-avs marker were 1.0 and 0.78, respectively. these figures for the bs-avs were 1.0 and 0.73, respectively. twenty environmental water samples were collected during wet conditions and 20 samples were colleted during dry ...201020891037
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