Table 5.

Results of isoenzyme analysis for species identification of the deliberately contaminated cell lines

Cell line	Passage	Isoenzyme
		NP		G6PD		MD		MPI
MDCK + BHK-21		MDCK	BHK-21	MDCK	BHK-21	MDCK	BHK-21	MDCK	BHK-21
99% MDCK + 1% BHK-21	P0	*	–	*	–	*	–	*	–
	P1	*	–	*	–	*	–	*	–
	P2	*	–	*	–	*	–	*	–
	P3	*	–	*	–	*	–	*	–

VERO + MDCK		VERO	MDCK	VERO	MDCK	VERO	MDCK	VERO	MDCK
99% VERO + 1% MDCK	P0	*	–	*	–	*	–	*	–
	P1	*	–	*	–	*	–	*	–
	P2	*	–	*	–	*	–	*	–
	P3	*	–	*	–	*	–	*	–

VERO + MDBK		VERO	MDBK	VERO	MDBK	VERO	MDBK	VERO	MDBK
99% VERO + 1% MDBK	P0	*	* (very faint)	*	–	*	* (very faint)	*	–
	P1	*	D	*	–	*	D	*	–
	P2	*	*	*	–	*	*	*	–
	P3	*	*	*	–	*	*	*	–

* Species specific mobility pattern observed. D-Doubtful