Table 2. SVCV molecular epidemiological investigation from 2002 to 2006.

Years	Quantity of fish	Quantity of sample	Cell culture		qRT-PCR
			positive	negative	positive	negative
2002	1600	320	0	320
2003	1450	290	0	320
2004	1250	250	0	250
2005	1210	242	1	240	1	114
2006	1190	238	1	237	1	32

^*The two positive simples in cell culture and qRT-PCR are same simples.