TABLE 2.

Virus growth assay

Virus no.	Virus plating efficiency (PFU/ml) ina:
	Vero cells	CV28 cells	C2 cells
KOS	5.9 × 109	9.8 × 108	6.7 × 109
vFH475	3.1 × 109	3.8 × 108	ND
vFH476	2.8 × 1010	2.1 × 109	ND
vFH499	<1,000	2.9 × 109	ND
vFH505	<1,000	3.1 × 108	ND
vFH503	<1,000	1.2 × 1010	ND
vFH504	<1 × 105	2.25 × 108	ND
vFH542	<1 × 105	1.55 × 108	ND
vFH543	<1,000	2.1 × 1010	ND
vFH546	<1,000	3.6 × 109	ND
vFH506	5 × 104	ND	7 × 108
vFH507	<1,000	ND	1.75 × 109

^aND, not determined.