Table 2. Diversity index (HGDI) calculated for each locus and for panels 1, 2A, 2B and MLVA16 according to the biovars of B. abortus isolated from cattle, Brazil, 1977 to 2008.

Group/Locus	Biovar 1		Biovar 2		Biovar 3		Biovar 6
	Typesa	HGDIb	Types	HGDI	Types	HGDI	Types	HGDI
Panel 1	5	0.16	2	0.07	3	0.14	2	0.1
Bruce06	2	0.05	2	0.12	2	0.07	2	0.09
Bruce08	2	0.03	1	0.00	2	0.07	1	0.00
Bruce11	2	0.03	1	0.00	1	0.00	2	0.09
Bruce12	3	0.08	1	0.00	1	0.00	2	0.09
Bruce42	1	0.00	1	0.00	1	0.00	1	0.00
Bruce43	1	0.00	1	0.00	1	0.00	1	0.00
Bruce45	2	0.03	1	0.00	1	0.00	2	0.09
Bruce55	1	0.00	1	0.00	2	0.07	1	0.00
Panel 2A	7	0.42	4	0.74	4	0.62	7	0.73
Bruce18	3	0.18	1	0.00	1	0.00	4	0.27
Bruce19	2	0.13	2	0.50	3	0.37	3	0.40
Bruce21	2	0.26	3	0.62	2	0.35	5	0.54
Panel 2B	38	0.96	10	0.93	18	0.95	12	0.95
Bruce04	4	0.49	2	0.50	9	0.88	8	0.87
Bruce07	3	0.46	2	0.12	2	0.07	3	0.33
Bruce09	4	0.08	1	0.00	2	0.07	2	0.09
Bruce16	6	0.70	3	0.59	2	0.35	2	0.18
Bruce30	6	0.62	4	0.67	3	0.20	2	0.18
MLVA16	48	0.93	14	0.98	21	0.97	16	0.98

^aNumber of genotypes;

^bDiversity index calculated according to Hunter and Gaston (1988) [32].