Table 1. Data on subjects investigated in the present study.

	Y1	Y2	K1	K2	K3	K4	K5	K6	K7
Age (years)	39	27	5	30	50	51	62	45	25
Sex	M	F	F	F	F	F	M	F	M
Country of origin	CMR	CMR	DRC	DRC	DRC	DRC	DRC	DRC	DRC
CSF WBC count *	6	6	3	5	6	6	27	935	1150
Disease stage	int.	int.	1	1	int.	int.	2	2	2

*Trypanosoma brucei were not detected in any of the CSF samples.

Abbreviations: CMR: Cameroon; CSF: cerebrospinal fluid; DRC: Democratic Republic of Congo; int: intermediate; WBC: white blood cell.