Khoo J J, Lim F S, Tan K K, Chen F S, Phoon W H, Khor C S, Pike B L, Chang L Y, AbuBakar S
Tropical Infectious Diseases Research and Education Centre (TIDREC), University of Malaya, Kuala Lumpur, 50603, Malaysia.
Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia.
J Med Entomol. 2017 Sep 1;54(5):1444-1448. doi: 10.1093/jme/tjx131.
Spirochetes from the Borrelia genus are known to cause diseases in humans, namely Lyme disease and relapsing fever. These organisms are commonly transmitted to humans by arthropod vectors including ticks, mite, and lice. Here, we report the molecular detection of a Borrelia sp. from a Haemaphysalis hystricis Supino tick collected from wildlife in an Orang Asli settlement in Selangor, Malaysia. Phylogenetic analyses of partial 16s rRNA and flaB gene sequences revealed that the Borrelia sp. is closely related to the relapsing fever group borreliae, Borrelia lonestari, Borrelia miyamotoi, and Borrelia theileri, as well as a number of uncharacterized Borrelia sp. from ticks in Portugal and Japan. To our knowledge, this is the first report of a Borrelia sp. detected in H. hystricis, and in Malaysia. The zoonotic potential of this Borrelia sp. merits further investigation.
疏螺旋体属的螺旋体已知会引发人类疾病,即莱姆病和回归热。这些病原体通常通过节肢动物媒介传播给人类,包括蜱、螨和虱子。在此,我们报告了从马来西亚雪兰莪州一个原住民定居点的野生动物身上采集的一只猪鬃硬蜱中检测到的一种疏螺旋体的分子检测结果。对部分16S rRNA和flaB基因序列的系统发育分析表明,该疏螺旋体与回归热组疏螺旋体、孤独疏螺旋体、宫本疏螺旋体、泰勒疏螺旋体密切相关,也与葡萄牙和日本蜱中一些未鉴定的疏螺旋体密切相关。据我们所知,这是在猪鬃硬蜱以及马来西亚检测到疏螺旋体的首次报告。这种疏螺旋体的人畜共患病潜力值得进一步研究。