Mueller-Anneling L, Gilchrist M J, Thorne P S
University of Iowa College of Public Health, Iowa City, Iowa 52242-5000, USA.
Emerg Infect Dis. 2000 Jul-Aug;6(4):397-400. doi: 10.3201/eid0604.000414.
Surveillance of 2,277 white-tailed deer for antibodies against Ehrlichia chaffeensis in Iowa showed seropositivity rates of 12.5% in 1994 and 13.9% in 1996. From 1994 to 1996, the estimated number of seropositive deer increased to 54,701 (28%). The increasing deer population and expanding tick distribution may increase risk for human monocytic ehrlichiosis.
对爱荷华州2277只白尾鹿进行查菲埃立克体抗体监测，结果显示1994年血清阳性率为12.5%，1996年为13.9%。1994年至1996年期间，血清阳性鹿的估计数量增加到54701只（增长了28%）。鹿群数量的增加和蜱虫分布范围的扩大可能会增加人类单核细胞埃立克体病的风险。
