Table 2. Characteristics of the Colombian H5N2 avian viruses isolated.

Virus	Subtype	Pathogenicity	Multibasic cleavage sitea	Growth without trypsin	NA stalklength	Reference
A/Chicken/Queretaro/14588-19/1995	H5N2	HP	PQRKRKTR*GLF	Yes	Short	54
A/tern/South Africa/1961	H5N3	HP	PQRETRRQKR*GLF	Yes	Long	50
A/Chicken/Pennsylvania/1/1983	H5N2	HP	PQKKKR*GLF	Yes	Short	55
A/Chicken/Mexico/26654-1374/1994	H5N2	LP	PQRETR*GLF	No	Short	54
A/mallard/Bavaria/1/2005	H5N2	LP	PQRETR*GLF	No	Long	50
A/WFWD/Colombia/1/2011	H5N2	LP	PQRETR*GLF	No	Long
A/BBWD/Colombia/1/2011	H5N2	LP	PQRETR*GLF	No	Long

^aDeduced amino-acid sequence.