Freehold Area Health Department, Municipal Plaza, Schanck Road, Freehold, NJ 07728, USA.
J Med Entomol. 2013 Mar;50(2):379-83. doi: 10.1603/me12088.
The etiological agents that cause human babesiosis (Babesia microti) and Lyme disease (Borrelia burgdorferi) share a common tick vector (Ixodes scapularis Say) and rodent reservoir (Peromyscus leucopus), but because the geographical distribution of babesiosis is more restricted than Lyme disease, it was not considered a nationally notifiable disease until 2011. Although recent studies have shown dramatic increases in the number of cases of babesiosis and expansion of its range, little is known about infection and coinfection prevalence of these pathogens in the primary tick vector. Of the 478 I. scapularis nymphs collected within six Monmouth County, NJ, municipalities between 2004 and 2006, 4.0 and 10.0% were infected with B. microti and B. burgdorferi, respectively, while 2.9% were coinfected. Analysis of the 610 I. scapularis adults collected during the same period yielded an infection prevalence of 8.2% for B. microti and 45.2% for B. burgdorferi, while 6.2% were coinfected. The potential public health importance of these findings is discussed.
导致人类巴贝虫病（微小巴贝斯虫）和莱姆病（伯氏疏螺旋体）的病原体有一个共同的蜱媒介（印鼠客蚤）和啮齿动物库（白足鼠），但由于巴贝虫病的地理分布比莱姆病更为局限，因此直到 2011 年才被认为是一种全国性应报告疾病。尽管最近的研究表明巴贝虫病的病例数急剧增加，其范围也有所扩大，但人们对这些病原体在主要蜱媒介中的感染和合并感染流行情况知之甚少。在 2004 年至 2006 年间，在新泽西州蒙茅斯县的六个市中采集的 478 只印鼠客蚤幼虫中，分别有 4.0%和 10.0%感染了微小巴贝斯虫和伯氏疏螺旋体，而 2.9%的幼虫同时感染了这两种病原体。同期采集的 610 只印鼠客蚤成虫的分析结果显示，微小巴贝斯虫的感染率为 8.2%，伯氏疏螺旋体的感染率为 45.2%，而 6.2%的成虫同时感染了这两种病原体。讨论了这些发现的潜在公共卫生重要性。
