TABLE 2.

Sensitivity of meningococcal PCR with culture-confirmed cases of meningococcal disease

Sample type	N. meningitidis ctrA result		Sensitivity (%)
	No. positive	No. negative
CSF	32	4	88.9
Plasma	142	15	90.4
Serum	25	6	80.6
Whole blood-EDTA	28	6	82.4
Throat swab	8	0	100
Othera	2	0	100
Total	237	31	88.4

^aSamples defined as fluid and aspirate.