Polymerase chain reaction for detection of Mycobacterium leprae in nasal swab specimens

Abstract excerpt

The polymerase chain reaction based on the selective amplification of a 531-bp fragment of the gene encoding the proline-rich antigen of Mycobacterium leprae was applied to nasal swab specimens from leprosy patients, occupational contacts, and endemic and nonendemic controls. To prevent false-positive amplification, we used dUTP and uracil-DNA-glycosylase in all polymerase chain reactions. False-negative...

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