Table 2.

Yields in PEDV and TuV using two methods for virus extraction from coastal waters.

Method			Method MF		Method FF		ANOVA
Virus	Sample	N	Mean recovery (%)	SD (%)	Mean recovery (%)	SD (%)	p value
PEDV	E1980	3	0.0754	0.126	3.55	3.38	p = 0.0004
	E1982	3	0.687	0.600	0.0112	0.00899	p = 0.5707
	E1989	2	1.61	0.339	ND
	E1990	2	1.55	0.979	ND
	Mean		0.981	0.736	1.78	2.50	ns
TuV	E1980	3	0.0777	0.0818	0.471	0.0750	p = 0.2575
	E1982	3	0.471	0.472	0.00513	0.00449	p = 0.0511
	E1989	2	0.948	0.247	ND
	E1990	2	3.84	1.09	ND
	Mean		1.33	1.71	0.238	0.329	ns

ND: not done.