Saowaluk SilpasakornDuangdao WaywaSiriwan HoontrakulChuanpit SuttinontKitti LosuwanalukYupin SuputtamongkolMahidol University2018-05-032018-05-032011-02-01Journal of the Medical Association of Thailand = Chotmaihet thangphaet. Vol.94 Suppl 1, (2011)012522082-s2.0-80054831551https://repository.li.mahidol.ac.th/handle/123456789/12640Using archived samples, we assessed the diagnostic capacity of two commercially available tests (an ELISA IgM and a rapid immunochromatographic test, ICT) for the detection of Leptospira spp. IgM and IgG antibodies to aid with the diagnosis of acute leptospirosis in febrile patients in Thailand. The sensitivities of the ELISA for the detection of IgM and the rapid immunochromatographic test for the detection of IgG were 60.7% (95% CI, 50.3 to 70.2%), and 83.2% (95% CI 73.9 to 89.6%) respectively. False positive ICT result occurred in one patient with influenza B infection. The positive rates of both assays were high after the first week of onset of fever up to third weeks of illness.Mahidol UniversityMedicineArticleSCOPUS