McCaig L F, Janowski H T, Gunn R A, Tsai T F
State of Florida Department of Health and Rehabilitative Services, Tallahassee.
Am J Trop Med Hyg. 1994 Mar;50(3):387-91. doi: 10.4269/ajtmh.1994.50.387.
From July 10 through August 4, 1980, five cases of St. Louis encephalitis (SLE) occurred in and near Fort Walton Beach on the Gulf Coast of northwest Florida. These were the first cases of SLE ever reported from the Florida panhandle. To determine the extent of SLE infection in the community, sera (n = 968) were collected from patients at the local hospital and county public health unit and tested for SLE virus antibody. The SLE attack rate was highest in a centrally located impoverished census tract. There was a trend toward decreasing seroprevalence with distance from the central area of the city. Overall, seroprevalence was higher in males (prevalence ratio = 2.7) and in all areas, seroprevalence increased with age. The serosurvey results suggest that SLE has been endemic in the Fort Walton Beach area.
1980年7月10日至8月4日期间，佛罗里达州西北部墨西哥湾沿岸的沃尔顿堡滩及其附近出现了5例圣路易斯脑炎（SLE）病例。这些是佛罗里达狭长地带首次报告的SLE病例。为了确定社区中SLE感染的程度，从当地医院和县区公共卫生单位的患者中采集了血清（n = 968），并检测了SLE病毒抗体。SLE发病率在位于中心位置的贫困普查区最高。随着与城市中心区域距离的增加，血清阳性率有下降趋势。总体而言，男性的血清阳性率更高（患病率比 = 2.7），并且在所有区域，血清阳性率均随年龄增长而升高。血清学调查结果表明，SLE在沃尔顿堡滩地区一直呈地方性流行。
