Abstract:West Nile virus neuroinvasive disease (WNV-NID) is challenging to diagnose. Procalcitonin (PCT) is a useful diagnostic test to identify bacterial infections. We present four cases of WNV-NID with serum PCT measurements. Methods: Daily (days 1–7) serum PCT (bioMérieux) was examined for critically ill patients with sepsis enrolled in a provincial sepsis study. Patients with identified WNV-NID are descriptively analyzed in this case series. PCT values of ≥0.5 ng/mL were suggestive of bacterial infection. Results:… Show more
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