TABLE 6.

Ranges of SBA titers against P1.19,15 and P1.7-2,4 isolates

Sample no.	SBA titer range (no. of dilutions between lowest and highest values)
	P1.19,15 isolates	P1.7-2,4 isolates
1	<4-8 (3)	<4-<4 (1)
2	4-64 (5)	<4-16 (4)
3	<4-8 (3)	16-256 (5)
4	8-256 (6)	8-512 (7)
5	16-256 (5)	<4-<4 (1)
6	<4-16 (4)	8-256 (6)
7	64-8,192 (8)	16-4,096 (9)
8	16-64 (3)	64-512 (4)
9	64-512 (4)	32-512 (5)
10	512-4,096 (4)	16-256 (5)
11	16-64 (3)	16-256 (5)
12	32-1,024 (6)	8-128 (5)
13	32-128 (3)	32-1,024 (6)
14	32-4,096 (8)	<4-128 (7)
15	64-2,048 (6)	<4-128 (7)