Table 3. Cell specific productivity of HD CAVGFP and corresponding contamination with helper JBΔ5.

Cells	HD CAVGFP		JBΔ5
	I.P./cell	Amplification ratio	I.P./cell	Amplification ratio	Contamination (%)
MDCK-E1#106-Cre#10	454±114	91±23	6±2	6±2		1.3
MDCK-E1#106-Cre#26	469±117	94±24	8±2	8±2		1.6
MDCK-E1#106-Cre#30	281±70	61±15	5±1	5±1		1.9
DKCre	531±133	106±27	17±4	17±4		2.5

Errors correspond to 25% inter-assay variability. The contamination levels of JBΔ5 correspond to the ratio between the I.P titers of JBΔ5 and HD CAVGFP.