. 2023 Aug 4;14:1220579. doi: 10.3389/fmicb.2023.1220579

Table 8.

Frequency of virulence and multi-virulence of strains and profiles by seasonality.

Month/year	Virulence [n (%)]		Multi-virulence [n (%)]		Total		OR I.Var.–I.M.⁻¹
	Strains	Profiles	Strains	Profiles	Strains	Profiles
October/2017	73 (67.6)^{ac, A}	26 (54.2)^{ab, C}	44 (40.7)^{a, B}	11 (22.9)^{a, D}	108	48	1.16
November/2017	37 (82.2)^{ad, A}	16 (66.7)^{a, C}	20 (44.4)^{a, B}	6 (25.0)^{a, D}	45	24	1.43
December/2017	37 (78.7)^{ad, A}	13 (61.9)^{ab, C}	21 (44.7)^{a, B}	2 (9.5)^{a, D}	47	21	1.0
January/2018	41 (53.2)^{bc, A}	15 (37.5)^{b, C}	16 (20.8)^{bc, B}	3 (7.5)^{a, D}	77	40	4.12
March/2018	8 (42.1)^{b, A}	6 (35.3)^{ab, C}	3 (15.8)^{bd, A}	3 (17.6)^{a, C}	19	17	45.33
April/2018	4 (57.1)^{bcd, A}	4 (57.1)^{ab, C}	1 (14.3)^{ad, A}	1 (14.3)^{a, C}	7	7	∞
May/2018	8 (61.5)^{bcd, A}	7 (58.3)^{ab, C}	2 (15.4)^{ad, B}	2 (16.7)^{a, C}	13	12	66.0
June/2018	20 (52.6)^{bc, A}	15 (62.5)^{ab, C}	2 (5.3)^{d, B}	2 (8.3)^{a, D}	38	24	30.86
July/2018	1 (20.0)^{b, A}	1 (20.0)^{ab, C}	0^{abd, A}	0^{a, C}	5	5	∞

Different lowercase letters in the same column indicate a significant difference. AB: difference in virulence and multi-virulence of strains (line). CD: difference in virulence and multi-virulence of the profiles (line) (p < 0.05). OR, odds ratio; I.Var., variability index; I.M., multi-virulence index.