TABLE 2.

Properties of chimeric viruses^a

icDNA	Transfections
	37°C			28°C		Infections with p0 stock
	ICA	Virus collected		Virus collected		37°C		28°C
	PFU/μg	h p.t.	CPE	h p.t.	CPE	h p.i.	CPE	h p.i.	CPE
SFV6	250,000	24	Cell death	48	Cell death	24	Cell death	48	Cell death
SFV-SFV4	200,000	24	Cell death	48	Cell death	24	Cell death	48	Cell death
SFV-CHIKV4	<2	72	Strong	96	Very mildb	24	Cell death	72	Very mildb
SFV-RRV4	<2	72	Mild	96	Very mildb	24	Cell death	72	Very mildb
SFV-SINV4	<2	72	Strong	96	Very mildb	24	Cell death	72	Very mildb
SFV-BFV4	<2	72	Medium	96	Very mildb	24	Cell death	72	Very mildb
SINV (Toto1101)	80,000	24	Cell death	48	Cell death	24	Cell death	48	Cell death
SINV-SINV4	80,000	24	Cell death	48	Cell death	24	Cell death	48	Cell death
SINV-BFV4	<2	72	Not observed	48	Strong	72	Not observed	48	Cell death
SINV-EILV4	<2	72	Not observed	72	Strong	72	Not observed	48	Cell death
SINV-VEEV4	<2	72	Not observed	96	Mild	72	Not observedc	48	Cell death
SINV-CHIKV4	<2	72	Not observed	72	Strong	72	Not observed	48	Cell death
SINV-ONNV4	<2	72	Not observed	48	Strong	72	Not observed	48	Cell death
SINV-MAYV4	<2	72	Not observed	48	Strong	72	Not observed	48	Cell death
SINV-RRV4	<2	72	Not observed	96	Medium	72	Not observed	48	Cell death
SINV-SFV4	<2	72	Not observed	96	Not observed	72	Not observed	48	Cell death

^aData from one experiment out of two are shown.

^bSigns of CPE were observed 24 h before virus stock was collected, but CPE did not progress and no cell death was observed.

^cIn one experiment, a slight change of color of growth medium was observed.