Genotyping of infectious bronchitis viruses identified in Canada between 2000 and 2013

Figures & data

Figure 1. Phylogenetic tree representing the diversity of IBV strains in Canada between 2000 and 2013. Bootstrap trials = 1,000, seed = 111. The three most recent samples for each genotype were used. The first two digits of the sequence title represent the year of detection.

Table 1. Genotypes of 185 IBVs detected in Canada between 2000 and 2013.

IBV type	IBV strain detected	Samples collected at slaughter	Clinical submissions	Total
Canadian variant	Qu_mv	5	61	66
Classic, vaccine-like	Connecticut	17	10	27
Classic, vaccine-like	Massachusetts	7	19	26
Non-Canadian, non-US variant	4/91	7	21	28
US variant-like	CU_82792	0	14	14
US variant-like	California 1734/04	1	3	4
US variant-like	California 99	0	7	7
US variant-like	Pennsylvania 1220/98	0	9	9
US variant-like	Pennsylvania Wolg/98	0	4	4

Table 2. Summary of the genotype of 185 IBV strains typed in Canada by year from 2000 to 2013.

	Year of detection
Genotype	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013
4/91												7	11	10
CA1734/04											1		2	1
CA99		7
Conn		3	1	3	1				1		7	10		1
CU_82792	1	1	2	2	3		1	3		1
Mass	2	1	1		1	4		1			1	6	1	8
PA/1220/98	3	6
PA/Wolg/98		2	1											1
Qu_mv		3	10	4	7	9	1	8	13		2	5		4