Table 1. Intragroup and intergroup mean divergences between HBV/A1 isolates from different geographic regions.

Continent	Country/region (number of isolates)	(Intragroup divergence (95% CI*)	Divergence with Brazilian isolates (95% CI)
Americas	Brazil (23)	1.14 (0.94–1.34)	-
	Antilles (40)	1.14 (0.96–1.32)	1.40 (1.16–1.64)
	Hispanic America (7)	1.91 (1.58–2.24)	1.91 (1.58–2.24)
Asia	Various (21)	1.71 (1.49–1.93)	1.69 (1.45–1.93)
Africa	Somalia (7)	1.36 (0.97–1.65)	1.60 (1.31–1.89)
	South Africa (18)	2.07 (1.80–2.34)	2.24 (1.89–2.59)
	Other sub-Saharan (17)	1.57 (1.33–1.81)	2.28 (1.87–2.69)
Europe	France (1)	-	1.71 (1.26–2.16)

*CI, confidence interval.