Belongia E A, Gale C M, Reed K D, Mitchell P D, Vandermause M, Finkel M F, Kazmierczak J J, Davis J P
Marshfield Medical Research Foundation and Marshfield Clinic, Marshfield, Madison, WI 54449, USA.
J Infect Dis. 2001 Dec 1;184(11):1470-4. doi: 10.1086/324517. Epub 2001 Oct 26.
The incidence of human granulocytic ehrlichiosis (HGE) in the upper Midwest is uncertain. Active surveillance for suspected HGE was conducted from 1997 through 1999 in a 13-county region of northwestern Wisconsin. Suspected HGE cases were classified, according to the national case definition, as confirmed, probable, or not HGE. In total, 112 confirmed cases and 30 probable cases of HGE were identified. The median age of the 142 case patients was 56 years, and 92 (65%) were male; 111 (78%) were residents of the surveillance region. The mean annual incidence of confirmed and probable HGE was 9.3 cases per 100,000 residents; there was no increase from 1997 to 1999. The incidence was highest among persons > or =50 years old and residents of Washburn County. The incidence of HGE in this region exceeded prior estimates, but it was lower than the reported incidence in areas of endemicity in Connecticut.
美国中西部上游地区人粒细胞埃立克体病（HGE）的发病率尚不确定。1997年至1999年期间，在威斯康星州西北部的一个13县地区对疑似HGE进行了主动监测。根据国家病例定义，疑似HGE病例被分类为确诊、可能或非HGE。总共确定了112例确诊的HGE病例和30例可能的HGE病例。142例病例患者的中位年龄为56岁，92例（65%）为男性；111例（78%）是监测地区的居民。确诊和可能的HGE的年平均发病率为每10万居民9.3例；1997年至1999年期间没有增加。发病率在年龄≥50岁的人群和沃什伯恩县居民中最高。该地区HGE的发病率超过了先前的估计，但低于康涅狄格州地方流行区报告的发病率。
