TABLE 4.

Frequency of HCV-specific CD8 cells detected ex vivo in peripheral blood by tetramer staining^a

Patient	HCV tetramer frequency ex vivo (%)
	NS3 1073-1081	NS3 1406-1415	NS4B 1992-2000
1C	0.42	0.2	<0.01
2C	<0.01	<0.01	0.15
3C	<0.01	<0.01	1.21
4C	2	<0.01	3
5C	<0.01	<0.01	0.24
6C	0.4	<0.01	<0.01
7C	<0.01	<0.01	0.06

^aSignificant values are in boldface.