Injecting drug use: A vector for the introduction of new hepatitis C virus genotypes

Table 3 The worldwide prevalence of hepatitis C virus genotypes

Area	The most prevalent genotype	Frequency of other genotypes	First author
North America	G1 (80%)	G2 (11.1%)	Thomas et al[13], 2012
	1a- the most common	G3 (7.4%)
		G4 (1.2%)
Europe	G1 (60%)	G3 (20%);	Messina et al[43], 2015
	1b- the most common	G4 (18%)
South-East	G3 (65%)	G1 (25%)	Mao et al[44], 2014
Asia		G1 prevails in China, G6 also reported	Li et al[45], 2015
Middle East	G4 (70%)	G1, G2, G6	Ray et al[46], 2000
and North Africa			Ramia et al[47], 2012
Sub-Saharan and Central Africa	G4	G5 and G6, G1a, 1b, 2a, 2b	Papastergiou et al[48], 2015
South Africa	G 5	G1, 2, 3, 4	Gededzha et al[49], 2014
Asia Pacific and Latin America	G1a	G 1b, 2a, 2b	Messina et al[43], 2015
			Ohno et al[50], 1997
			Villar et al[51], 2015