Detection limits of Nm LAMP and PCR assays targeting the <i>ctrA</i> gene and using Nm-serogroup-B-spiked CSF specimens.

a PCR results were obtained by electrophoresis. LAMP results were obtained by visual inspection of turbidity, colorimetric visual inspection dye, and by using a real-time turbidimeter. b +, Amplification;–, No amplification; ±, amplification occurred once. c Duplicate results. Detection limits of Nm LAMP and PCR assays targeting the ctrA gene and using Nm-serogroup-B-spiked CSF specimens.