An outbreak of hepatitis A associated with consumption of raw blueberries

被引：96
作者：
Calder, L
Simmons, G
Thornley, C
Taylor, P
Pritchard, K
Greening, G
Bishop, J
机构：
[1] Auckland Dist Hlth Board, Publ Hlth Community Serv, Auckland 1, New Zealand
[2] Inst Environm Sci & Res Ltd, Kenepuru Sci Ctr, Wellington, New Zealand
[3] Minist Hlth, Wellington, New Zealand
来源：
EPIDEMIOLOGY AND INFECTION | 2003年 / 131卷 / 01期
关键词：
D O I：
10.1017/S0950268803008586
中图分类号：
R1 [预防医学、卫生学];
学科分类号：
1004 ; 120402 ;
摘要：
This report describes 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 revealed that 56% of 39 cases had consumed raw blueberries, compared with 14% of 71 controls (odds ratio 7.6; 95% confidence intervals 2.6-22.4). Traceback of product through retailers and wholesalers implicated a single commercial orchard. Hepatitis A virus was detected by reverse transcriptase polymerase chain reaction in faecal specimens from cases as well as a blueberry product from the orchard. Presence of hepatitis A virus was confirmed by DNA hybridization and sequencing of PCR products. Sanitary audit of the orchard revealed multiple opportunities for contamination of blueberries by pickers. This outbreak highlights the need for food safety programmes in the berry fruit industry.
引用
收藏
页码：745 / 751
页数：7
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