Table 2.

Nucleotide and deduced amino acid identities of IBV S1 gene sequences.

Nucleotide identity
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
1		97	96	96	76	76	78	77	77	76	77	79	78	76	77	1 Sul/01/09 isolate
2	95		98	98	77	77	78	78	78	77	77	78	78	76	77	2 IS/720/99
3	95	97		97	77	77	78	77	78	77	77	79	78	77	77	3 IS/885
4	94	97	96		74	74	77	74	76	73	74	77	76	75	75	4 Egypt/BeniSeuf/01
5	72	73	73	71		99	80	93	77	76	76	77	77	78	97	5 H 120 (vaccine)
6	72	73	73	72	99		80	93	77	76	76	77	77	78	97	6 MA5 (vaccine)
7	76	76	77	72	78	78		80	77	76	77	80	80	77	81	7 Australian T strain
8	73	73	73	70	90	90	79		76	76	76	77	77	77	94	8 Connecticut
9	73	75	75	72	73	73	74	73		93	94	81	81	78	77	9 4/91
10	72	74	73	68	72	72	74	72	90		97	80	80	76	76	10 IR-1061-PH (Iran)
11	73	74	74	70	72	72	74	72	90	96		81	81	78	77	11 IR-1062-GA (Iran)
12	77	79	79	75	75	75	80	75	82	81	81		98	77	77	12 Spain/00/338
13	77	78	78	74	75	75	80	75	82	81	81	97		77	78	13 Italy-02
14	74	75	76	72	76	76	74	75	77	75	76	76	76		78	14 QXIBV
15	70	72	71	69	95	95	78	89	73	72	72	74	74	75		15 M41
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Amino acids identity