Canadians may receive false-positives for Lyme disease, from some commercial labs in the United States over half the time, according to an editorial in the CMAJ.
Lyme disease, which is becoming more common in Canada, is spread by ticks and causes fatigue, swollen lymph nodes, and if not treated, the infection can spread to joints, the heart, and the nervous system.
The authors believe American specialty labs should not be considered as more accurate or sensitive than tests from the National Microbiology Laboratory of Canada.
Original research paper published in the CMAJ on August 31, 2015.
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