Download An outbreak of Hepatitis A associated with consumption of raw blueberries

The aim of this report is to describe the epidemiology, investigation and control of a hepatitis A (HAV) outbreak in New Zealand. Descriptive and analytical epidemiology, virology, product traceback and an orchard investigation were carried out. A case-control study involving 39 cases revealed that 56% of cases had consumed raw blueberries, as compared with 14% of controls (odds ratio 7.6; 95% confidence intervals 2.6 – 22.4).