Comparison of a New Gold Immunochromatographic Assay for the Rapid Diagnosis of the Novel Influenza A (H7N9) Virus with Cell Culture and a Real-Time Reverse-Transcription PCR Assay

Table 1

Analytic sensitivity and specificity in testing recombinant influenza hemagglutinin (HA) proteins by GICA^a.

Proteins tested	Virus Strains	Concentration (ng/mL)	Results by GICA
Recombinant HA	A/Shanghai/2/2013 (H7N9)	1	+
		10	+
		100	+
		1000	+
Recombinant HA	A/Anhui/1/2013 (H7N9)	1	+
		10	+
		100	+
		1000	+
Recombinant HA	A/Netherlands/2/19/03 (H7N7)	1	−
		10	+
		100	+
		1000	+
Recombinant HA	A/Hubei/1/2010 (H5N1)	1000	−
Recombinant HA	A/Victoria/361/2011 (H3N2)	1000	−
Recombinant HA	A/California/06/2009 (H1N1)	1000	−
Virus lysates	H5N9	1000	−
Virus lysates	H9N2	1000	−
Virus lysates	H1N1	1000	−

aGICA: gold immunochromatographic assay.