Brown G W, Shirai A, Groves M G
Trans R Soc Trop Med Hyg. 1983;77(2):225-7. doi: 10.1016/0035-9203(83)90079-2.
Malaysian, British and New Zealand soldiers were tested for evidence of infection with Rickettsia tsutsugamushi after several weeks' exposure to the infection during field exercises in Malaysia. 39 (5.0%) of 787 British and New Zealand soldiers developed immunofluorescent antibody (IFA) to R. tsutsugamushi to a titre of 1:50 and two (0.3%) to a titre of 1:100. 11 (1.5%) of 751 Malaysian soldiers also developed low titres less than or equal to 1:100. These low antibody levels were not correlated with clinical disease, and their significance is unknown. Seven (0.9%) of the Malaysians showed an IFA rise to greater than or equal to 1:200, and three of these experienced febrile illnesses, one lasting two weeks. An additional eight Malaysian soldiers had an IFA titre of greater than or equal to 1:400 when first tested and six of these also had a Proteus OXK agglutinin titre of greater than or equal to 1:160, indicating infection shortly before the study.
在马来西亚进行野外演习期间，马来西亚、英国和新西兰士兵在接触感染源数周后，接受了恙虫病东方体感染证据检测。787名英国和新西兰士兵中，39人（5.0%）产生了针对恙虫病东方体的免疫荧光抗体（IFA），效价为1:50，2人（0.3%）效价为1:100。751名马来西亚士兵中，11人（1.5%）也产生了效价小于或等于1:100的低滴度抗体。这些低抗体水平与临床疾病无关，其意义尚不清楚。7名马来西亚人（0.9%）的IFA效价升至大于或等于1:200，其中3人出现发热性疾病，1人持续两周。另外8名马来西亚士兵首次检测时IFA效价大于或等于1:400，其中6人变形杆菌OXK凝集素效价也大于或等于1:160，表明在研究前不久感染。
