Abstract
Infectious disease, predominately chlamydiosis, contributes significantly to the decline in health of wild koala (Phascolarctos cinereus) populations in some regions of Australia. In this study, we describe the development and evaluation of a simple, sensitive, and specific loop‐mediated isothermal amplification (LAMP) assay for the detection of Chlamydia pecorum in koalas as a point‐of‐care diagnostic tool that can be used in any wildlife hospital and in the field on specialized instrumentation. A set of primers targeting a 188‐bp region of the C. pecorum genome was designed. 100% specificity of the LAMP assay was revealed by demonstrating no cross‐reactivity with 33 nontarget pathogens, and complete correlation with qPCR results for 43 clinical swabs collected opportunistically from wildlife hospitals. In sensitivity evaluations, the technique successfully detected serial dilutions of extracted C. pecorum DNA with a detection limit of 44 IFU/ml.
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