TABLE 1.

HI and CF response patterns following influenza virus vaccination^a

Antibody response pattern by HI	Total no. of samples	No. of donor samples exhibiting the indicated CF response pattern at:
		Laboratory 1				Laboratory 2
		Neither A nor B	A only	B only	A and B	Neither A nor B	A only	B only	A and B
Neither	7	7	0	0	0	6	0	0	1
B	2	2	0	0	0	2	0	0	0
A	13	9	1	2	1	9	2	2	0
	16	12	0	3	1	10	0	2	4
Both	38	30	1	5	2	27	2	4	5

^aAntibody response patterns were as follows: neither, negative for A-NC and/or A-Pan as well as for B; B, positive for B but negative for A-NC and/or A-Pan; A, positive for A-NC and/or A-pan but negative for B; both, positive for A-NC and/or A-Pan as well as for B. A-NC, influenza virus A/New Caledonia; A-Pan, influenza virus A/Panama.