Table 4.

The patterns of the HA cleavage site of H5N1 virus isolates (2006–14) genetically characterized in Egypt

Cleavage site AA pattern		Years of detection	Cluster				Total
			2.2.1	2.2.1.2	2.2.1.1	2.2.1.1a
ERRRKR		2006–2007	23				23
EKRRKR		2006–2007	2				2
ERRRRKR		2007	1				1
ERRRKKR		2007–2012	42	109	31	7	192
EKRRKKR		2008–2014	1	110			111
DGRRKKR		2009				1	1
EGRRKKR		2009–2011				23	22
KSRRKKR		2009	6				6
ERKRKKR		2010		1			1
EGRRKKR		2010				5	5
EGRRRKKR		2010				2	2
DRRRKKR		2010		2			2
KKRRKKR		2013		1			1
Total	13		75	224	31	38	368