Table 3.

Distribution of genotypes and lineages throughout the study period.

Genetic group	Season										Total
	2014-2015		2015		2015-2016		2016		2016-2017
A1	0	0%	0	0%	0	0%	0	0%	0	0%	0	0%
A2a	9	10%	1	20%	0	0%	0	0%	1	1%	11	3%
A2b	12	14%	0	0%	22	16%	1	10%	2	1%	37	10%
A2c	13	15%	0	0%	65	46%	8	80%	67	47%	153	40%
A2cwt	11	85%	0	0%	46	71%	6	75%	31	46%	94	61%
A2c180dup	2	15%	0	0%	18	28%	1	12.5%	25	37%	46	30%
A2c111dup	0	0%	0	0%	1	1%	1	12.5%	11	17%	13	9%
B1	37	42%	4	80%	22	16%	1	10%	42	29%	106	27%
B2	17	19%	0	0%	31	22%	0	0%	31	22%	79	20%
B2a	5	29%	0	0%	2	6%	0	0%	3	10%	10	13%
B2b	12	71%	0	0%	29	94%	0	0%	28	90%	69	87%
Total	88	100%	5	100%	140	100%	10	100%	143	100%	386	100%

A2c_wt: A2c strains without any duplication

A2c_180dup: A2c strains carrying the 180-nucleotide duplication

A2c_111dup: A2c strains carrying the 111-nucleotide duplication