Watch for false negatives with Buruli ulcer swabs

Initial negative results can see diagnostic delays of more than 70 days: study

An initial negative test for suspected Buruli ulcer should be treated with caution and repeated, Victorian infectious diseases specialists say.

buruli ulcer

While PCR testing of lesion material is the most accurate way of diagnosing the disease, the result for a swab sample may be negative if the lesion is not yet ulcerated, write the authors of a research letter published in the Medical Journal of Australia.

“A negative PCR test result for a suspicious lesion does not exclude Mycobacterium ulcerans disease; the test should be repeated, preferably with a

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