347 Do changes in the incidence of occupationally-acquired food-borne zoonotic infections precede changes in the wider population?
研究英国农业、兽医及食品行业从业者的职业性人畜共患病发病率变化，能否预测普通人群食源性感染的变动，发现沙门氏菌病发病率同步下降，提示职业监测可能有用。
<h3>Objectives</h3> Recently the WHO estimated that up to 75% of emerging pathogens may be of zoonotic origin. Occupationally acquired zoonoses are of particular concern in food producing sectors because of the possibility of transmission through the food chain. We aim to investigate whether changes in incidence of occupationally-acquired zoonotic infections in agricultural and veterinary workers or food preparation and food retail workers are useful in predicting changes in the incidence of food-borne zoonotic infections in the wider population. <h3>Methods</h3> In the UK infectious disease consultants report cases of occupationally acquired infectious disease to the Surveillance of Infectious Diseases at Work (SIDAW) scheme. Cases reported to SIDAW will be analysed using a 2 level negative binomial regression model adjusted for changes in the size of occupational group at risk as described elsewhere<sup>1</sup>. Following a target set by the UK Health Protection Agency (HPA) in 2001 to reduce the incidence of <i>salmonella</i> in UK produced chicken there has been a declining trend in outbreaks of food-borne salmonellosis. In contrast there has been little change in the number of outbreaks of food-borne camphylobacteriosis reported to the HPA over the same time. These trends reported to the HPA will be compared with SWORD data. <h3>Results</h3> Between 1997 and 2010, 244 individual cases (209 outbreaks) of salmonellosis and 577 individual cases (522 outbreaks) of camphylobacterosis were reported to SWORD. Over the same time period 590 foodborne outbreaks of salmonellosis and 105 of camphylobacterosis were reported to the HPA. A simultaneous decline in the incidence of salmonellosis reported to SWORD and food-borne salmonellosis reported to the HPA was observed. These data will be analysed further to compare different occupational sectors. <h3>Conclusion</h3> Reporting of occupational infectious diseases in some sectors may be a useful marker for changes in incidence occurring in the wider population. <h3>Reference</h3> 1 Turner <i>et al.</i> Occup Env Med 2012; 69:12 925–931