Evaluation of a diagnostic polymerase chain reaction assay for Neisseria meningitidis in North America and field experience during an outbreak. by Pollard, A, Probe, G, Trombley, C, Castell, A, Whitehead, S, Bigham, J, Champagne, S, Isaac-Renton, J, Tan, R, Guiver, M, Borrow, R, Speert, D, Thomas, E