In November 2017, Public Health England identified an outbreak of Shiga toxin-producing Escherichia coli O157:H7 in England where whole genome sequencing results indicated cases were likely to be linked to a common source, and began investigations. Hypothesis generation included a review of enhanced surveillance data, a case-case study and trawling interviews. The hypothesis of interest was tested through the administration of focussed questionnaires and review of shopping history using loyalty card data. Twelve outbreak cases were detected, eight were hospitalised and four developed haemolytic uraemic syndrome. Frozen beef burgers supplied by a national retailer were identified as the vehicle of the outbreak. Testing of two left-over burger samples obtained from the freezers of two separate (unlinked) cases and a retained sample from the production premises were tested and found to be positive for the outbreak strain. A voluntary recall of the burgers was implemented by the retailer. Investigations at the production premises identified no contraventions of food safety legislation. Cooking guidance on the product packaging was deemed to be adequate and interviews with the cases/carers who prepared the burgers revealed no deficiencies in cooking practices at home. Given the long-shelf life of frozen burgers, the product recall likely prevented more cases.
To examine the incidence and outcomes of paediatric playground and tree-related injuries in the Midland region of New Zealand. Methods: A retrospective review of Midland Trauma Registry hospitalisation data between January 2012 and December 2018 was undertaken. Cases included children aged 0-14 years hospitalised for playground and tree-related injuries. Demographic and event information, injury severity and hospital-related outcomes were examined. Results: Playground and tree-related hospitalisations (n = 1941) occurred with an age-standardised rate of 144.3/100 000 (confidence interval (CI) 127.3-161.3) and increased 1.4% (CI 1.3-4.2%) annually. The highest incidence was observed in 5-9-year olds (248.8/100 000) with 0-4 and 10-14-year olds at 86.0 and 89.2/100 000, respectively. Injuries most commonly occurred at home, school or pre-school (77.1%), 93.7% were due to falls and, the upper extremity was the most frequently injured body region (69.9%), particularly due to forearm (55.6%) and upper arm (34.7%) fractures. Tree-related incidents comprised 11.6% of all injuries and explained 57.1% of injuries classified as major severity. Fifty-eight percent of children were hospitalised for 1 day and 97.0% for less than 5 days. Estimated hospital costs were NZ$1.2 million annually with a median of NZ $3898 per incident. Injuries classified as minor severity accounted for 86.5% of the total estimated cost. Conclusion: Children aged 5-9 years' experience high rates of costly hospitalisation for playground and tree-related injuries. Targeted injury prevention initiatives, particularly in the home and school environments, are imperative to reduce the incidence and burden of playground and tree-related injuries to affected children, their families and hospital resources.
Objective A causal relationship between alcohol consumption and injury exists and the prevalence of harmful alcohol intakes in New Zealand adults is high. The present study investigates compliance to blood alcohol (BA) screening policy and the epidemiological profile and hospital‐related outcomes of trauma team activation (TTA) patients with positive BA at a New Zealand level 1 trauma centre. Methods A retrospective review of Midland Trauma Registry hospitalisation data between January 2012 and December 2019 was conducted. Eligible patients (n = 2168) were ≥15 years who received TTA at Waikato Hospital. BA screening rates, demographic and event information, injury severity and hospital‐related outcomes were examined. Results The average BA screening rate was 94.0% (95% confidence interval 92.9–95.0%) and 17.9% of screened patients were BA+. BA+ patients were younger than BA− (34.7 and 40.5 years, P < 0.0001). More males than females (20.6 and 12.4%, P < 0.0001), Māori (30.8%) compared to non‐Māori (<16.0%) and unemployed/beneficiaries (33.4%) compared to employed patients (15.5%) were BA+. Road transport crashes accounted for the highest proportion (45.2%) but, in comparison there were higher odds of BA+ from interpersonal violence (odds ratio 4.48, P < 0.0001). No difference between BA+ and BA− was observed in survival rate, injury severity scores, length of intensive care and total hospital stay. Conclusion Between 2012 and 2019, Waikato Hospital demonstrated high compliance to BA screening policy for TTA patients. Appropriate alcohol awareness initiatives that focus on road safety and interpersonal violence are required to reduce the preventable prevalence and burden of alcohol‐related trauma in the Waikato region.
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