EPIDEMIOLOGIC SURVEILLANCE FOR ENDEMIC GIARDIA-LAMBLIA INFECTION IN VERMONT - THE ROLES OF WATERBORNE AND PERSON-TO-PERSON TRANSMISSION
EPIDEMIOLOGIC SURVEILLANCE FOR ENDEMIC GIARDIA-LAMBLIA INFECTION IN VERMONT - THE ROLES OF WATERBORNE AND PERSON-TO-PERSON TRANSMISSION
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DOI：
10.1093/oxfordjournals.aje.a115191
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发表时间：
1989-04-01
影响因子：
5
通讯作者：
VOGT, RL
中科院分区：
文献类型：
--
作者：
BIRKHEAD, G;VOGT, RL
作者研究了1983年至1986年期间通过佛蒙特州以实验室为基础的主动监测系统报告的佛蒙特州居民中1，211例实验室确认的非暴发相关贾第虫病病例。贾第虫病是该州最常见的可报告疾病，平均年发病率为每10万人口45.9例。这一比例高于其他报告贾第虫病发病率的州。贾第虫病的发病率也很高，30%的病例报告症状持续四周或更长时间。水传播被认为是非暴发相关病例的一个重要原因，因为在接受未经过滤的市政或非市政居民饮用水的人群中，感染率最高。在海拔较高的地方，发病率也较高，因为那里的供水可能难以防止污染。此外，按年龄划分的发病率模式和日托儿童的高估计感染率表明，人与人之间的传播也是造成非疫情相关病例的一个原因。常规监测数据可用于指示贾第虫病在社区中可能的重要传播途径。
The authors studied 1,211 laboratory-confirmed, non-outbreak-related cases of giardiasis in Vermont residents reported through Vermont''s laboratory-based, active surveillance system between 1983 and 1986. Giardiasis was the most common reportable disease in the state, with an average annual incidence rate of 45.9 cases per 100,000 population per year. This rate is higher than that in other states reporting giardiasis incidence. Morbdity from giardiasis was also significant in that 30% of cases reported symptoms lasting four or more weeks. Waterborne transmission was suggested to be an important cause of non-outbreak-related cases because rates of infection were highest in persons receiving nonfiltered municipal or nonmunicipal residential drinking water. Rates were also higher at higher elevations, where water supplies may be difficult to protect from contamination. In addition, the pattern of age-specific incidence rates and the high estimated incidence of infection in children attending day care suggested that person-to-person transmission also played a role in causing non-outbreak-related cases. Routine surveillance data can serve to indicate likely important routes of transmission of giardiasis in the community.