Muul I, Lim B L, Walker J S
Trans R Soc Trop Med Hyg. 1977;71(6):493-7. doi: 10.1016/0035-9203(77)90142-0.
Rickettsia tsutsugamushi isolations were attempted from blood samples obtained from rats captured in four adjacent habitats near Kuala Lumpur, Malaysia. Antibody surveys were also made. Rickettsial infections were most frequent in rats captured in the forest and in lalang grass (Imperata cylindrica) and least frequent in the most extensively disturbed habitat, an Orang Asli (aborigine) village. Forest rats such as Rattus sabanus (31%), as well as rats in the subgenus R. (Rattus), i.e. R. tiomanicus (26%) and R. argentiventer (35%) had frequent active infections. The house rat R. exulans had less frequent infections (15%). Frequency of antibody occurrence followed a similar pattern. No marked seasonal differences in the frequency of infections could be detected during the 18-month study.
研究人员尝试从在马来西亚吉隆坡附近四个相邻栖息地捕获的大鼠血液样本中分离恙虫病东方体。同时也进行了抗体调查。立克次氏体感染在森林和白茅（Imperata cylindrica）中捕获的大鼠中最为常见，而在受干扰最严重的栖息地——一个原住民（奥朗阿斯利）村庄中捕获的大鼠中感染频率最低。诸如萨氏家鼠（Rattus sabanus，31%）等森林鼠，以及家鼠亚属（R. (Rattus)）中的大鼠，即蒂曼家鼠（R. tiomanicus，26%）和银腹家鼠（R. argentiventer，35%）有频繁的活动性感染。家鼠（R. exulans）的感染频率较低（15%）。抗体出现频率遵循类似模式。在为期18个月的研究中，未检测到感染频率有明显的季节性差异。
