Live poultry exposure, Guangzhou, China, 2006
Live poultry exposure, Guangzhou, China, 2006
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DOI：
10.1016/j.epidem.2009.09.002
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发表时间：
2009-12-01
期刊：
影响因子：
3.8
通讯作者：
Fielding, Richard
中科院分区：
文献类型：
--
作者：
Liao, Qiuyan;Lam, Wing Tak;Fielding, Richard
背景：菜市场和后院饲养的活禽是H5N1禽流感人间病例的潜在主要暴露源。在中国，这种暴露的风险程度尚不清楚。我们根据自我报告的行为来估计暴露程度。方法：2006年1月至3月，通过分层整群抽样和家庭内随机抽样，对广州地区1550人进行了面对面访谈，提供了基于自述购买和接触方式的活禽暴露数据。计算标准暴露量，并在调整后外推到城市人口。结果：根据性别调整后的结果显示，1248 / 1550（80%，95%置信限78-82%）受访者报告平均每年购买20.5只活鸡/户。在购买家禽的家庭中，33%在购买前接触过家禽，20%的家庭饲养活家禽。广州的菜市场和后院养殖的总暴露量大大超过邻近的香港（15,280,000吨/年vs 1,110,900吨/年）。后院暴露的频率可能超过活禽零售，但购买更为普遍，因此构成重要的风险源。结论：广州市人群在购买和饲养家禽过程中存在较高的暴露风险。广州需要更好的家禽饲养和销售管理。(C) 2009 Elsevier B.V.版权所有
Background: Live poultry in wet markets and backyard husbandry comprise potentially major exposure sources for human cases of H5N1 avian influenza. In China the magnitude of risk from this exposure is unknown. We estimated exposure based on self-reported behavior.Methods: In January-March 2006, 1550 face-to-face interviews derived from stratified cluster and randomized within-household sampling provided data on live poultry exposure in Guangzhou, China based on self-reported buying and touching patterns. Standardized exposures were calculated and after adjustment extrapolated to the urban population.Results: The results, adjusted for gender, showed that 1,248/1,550 (80%, 95% Confidence Limits 78-82%) respondents reported an average of 20.5 live chicken purchases/household annually. Of those buying poultry 33% touched poultry before buying while 20% of households raised live poultry. Total exposures from wet market and backyard husbandry in Guangzhou greatly exceed those of adjacent Hong Kong (15,280,000 e/year vs. 1,110,900 e/year). Backyard exposure frequency likely exceeds that from live poultry retail, but purchases were more prevalent and hence comprise a significant risk source.Conclusion: The Guangzhou population faces risks from the high prevalence of exposures during purchase and poultry rearing. Better management for raising and selling poultry in Guangzhou is needed. (C) 2009 Elsevier B.V. All rights reserved.