Table 3.

Potencies Expressed Relative to Sample 22 in the Pseudo Virus Neutralization Assay (U/ml).

Lab	Sample
	22	44	77	99
WS1	1000	2347	62	932
ZX	1000	1706	70	1009
SZ	1000	2093	56	2047
ZA	1000	1552	50	1073
ZC	1000	2497	43	1525
ZW	1000	1897	242	1231
JW	1000	1576	40	853
JS1	1000	2319	100	1350
BS	1000	1920	84	501
ZY1	1000	2669	348	737
Overall GM relative to 22		2050	83	1065
Overall GCV% relative to 22		23	106	48
Overall GM relative to 22 excluding ZW		2068	74	1048
Overall GCV% relative to 22 excluding ZW		24	92	51

Abbreviations: GM, geometric mean; GCV, geometric coefficient of variation.