Table 2.

Geometric Mean Potencies for Samples in the Pseudo virus Neutralization Assay.

Lab		Sample
		22			44		77			99
	N	GM	GCV%	N	GM	GCV%	N	GM	GCV%	N	GM	GCV%
WS1	8	1613	21	8	4306	15	9	113	39	9	1711	19
ZX	4	1460	19	4	2491	12	4	102	33	4	1474	7
SZ	3	1455	7	3	3045	27	3	81	79	3	2978	49
ZA	3	3271	46	1	5076	NC	3	163	12	3	3509	16
ZC	3	1498	27	3	3740	12	3	64	61	3	2284	87
ZW	3	6117	44	1	11,603	NC	3	1478	324	2	7528	41
JW	3	2185	59	3	3444	56	4	87	27	4	1864	38
JS1	4	1268	14	4	2942	14	4	127	10	4	1713	18
BS	3	1431	20	3	2747	10	3	120	44	3	717	34
ZY1	3	1835	58	3	4898	27	3	638	85	3	1352	54
Overall GM		1938			3973		162			2064
Overall GCV%		63			56		172			88
CI (95%)		1367–2748			2886–5470		79–330			1314–3243
Overall GM excluding ZW		1706			3527		126			1788
Overall GCV% excluding ZW		34			29		95			59
CI (95%) excluding ZW		1385–2101			2938–4234		79–203			1282–2493

Abbreviations: N, number of assays; NC, not calculated; GM, geometric mean; GCV, geometric coefficient of variation; CI, confidence interval.