Cadham Provincial Laboratory, Manitoba Health, Winnipeg, Manitoba ; Department of Medical Microbiology, Winnipeg, Manitoba ; Department of Paediatrics and Child Health, Winnipeg, Manitoba.
Department of Pathology, University of Manitoba, Winnipeg, Manitoba.
Can J Infect Dis Med Microbiol. 2014 Nov-Dec;25(6):e87-9. doi: 10.1155/2014/209521.
A child with a complicated medical history that included asplenia acquired an infection with Babesia microti in the summer of 2013 and had not travelled outside of Manitoba. Although the clinical findings were subtle, astute laboratory work helped to reach a preliminary identification of Babesia species, while reference laboratory testing confirmed the diagnosis. Blacklegged ticks (Ixodes scapularis) are known to transmit Borrelia burgdorferi and Anaplasma phagocytophilum in the province; however, the present case represents the first known instance of tick-borne B microti, both in Manitoba and in Canada. The expanding territory of the blacklegged tick increases the relevance of this emerging infection. Clinicians, laboratory medical practitioners and public health officials should be aware of B microti as a potential locally acquired infection in Canada.
一名儿童有复杂的医疗史，包括获得性无脾，于 2013 年夏天感染微小巴贝斯虫，且未曾前往马尼托巴省以外的地区旅行。尽管临床发现较为细微，但敏锐的实验室工作有助于初步鉴定巴贝斯虫种类，而参考实验室检测则确认了诊断。在该省，黑腿蜱（Ixodes scapularis）已知可传播伯氏疏螺旋体和嗜吞噬细胞无形体；然而，本病例是曼尼托巴省和加拿大首例已知的蜱传微小巴贝斯虫感染。黑腿蜱的活动范围不断扩大，增加了这种新出现感染的相关性。临床医生、实验室医疗从业者和公共卫生官员应意识到微小巴贝斯虫在加拿大是一种潜在的本地获得性感染。
