Table 5.

 Bird‐level sensitivity for different combinations of clinical specimens when tested by Anigen and Quickvue LFDs in comparison to H5 HA2 RRT PCR

Species	Clinical specimen (single or combination)	Bird‐level sensitivity of LFD		Difference in % sensitivities between Anigen and Quickvue LFDs	95% CI of difference	P value of difference
		Anigen	Quickvue
Chicken	T alone	8/26 = 30·8%	7/26 = 26·9%	3·9	(−7, 15)	NS
	C alone	7/26 = 26·9%	6/26 = 23·1%	3·8	(−7, 15)	NS
	T & C	9/26 = 34·6%	9/26 = 34·6%	0	NA	NS
	F	21/26 = 80·8%	14/26 = 53·9%	26·9	(6, 48)	0·016
	T, C & F	22/26 = 84·6%	17/26 = 65·4%	19·2	(0·2, 38)	0·06
Ducks	Swabs (single or both T & C combined)	0/15 = 0%	0/15 = 0%	NA	NA	NA
	F	8/15 = 53·3%	5/15 = 33·3%	20·0	(−7, 47)	NS

LFD, lateral flow device.

Abbreviations for swabs and feathers (T, C and F) as for Table 1. Different combinations of clinical specimens tested by LFD relative to bird‐level status of infection, as determined by H5 HA2 RRT PCR in Table 4. NA, not applicable, NS, not significant.