Molecular analysis of hepatitis B virus isolates in Mexico: Predominant circulation of hepatitis B virus genotype H

Table 1 Distribution of HBV genotypes in the populations studied n (%)

Group of subjects	n	Genotypes, n (%)
		A	D	G	H
Hepatitis patients	15	1 (6.7)	2 (13.3)	0	12 (80)
Men seeking HIV testing	20	3 (15)	1 (5)	1 (5)	15 (75)
AIDS Patients	8	0	0	4 (50)	4 (50)
Hemodialysis patients	6	0	0	0	6 (100)
Total	49	4 (8.2)	3 (6.1)	5 (10.2)	37 (75.5)

Table 2 Prevalence of precore and core promoter variants and its correlation with genotypes found in Mexican HBV isolates

Region and variant	n (%)		Genotypes
			A	D	G	H
			(n = 4)	(n = 3)	(n = 5)	(n = 37)
Precore (nt 1896)
Wild type (G)	41	(83.7)	3	2		36
Wild type + variant (G + A)	6	(12.2)	1		5
Indeterminate	2	(4.1)		1		1
Core promoter (nt 1762 and 1764)
Wild type (AG)	44	(89.8)	4	2	5	33
Dual variant (TA)	1	(2)				1
Indeterminate	4	(8.2)		1		3