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Table 6 Pre-EPIYA region patterns deposited in GenBank.

From: Analysis of virulence factors of Helicobacter pylori isolated from a Vietnamese population

County Total 39-bp deletion No deletion 18-bp deletion
Japan 181 145 (80%) 31 (17%) 5 (3%)
China 37 33 (89%) 1 (3%) 3 (8%)
Korea 8 5 (63%) 3 (38%) 0
Hong Kong 8 4 (50%) 0 4 (50%)
Taiwan 5 4 (80%) 0 1 (20%)
Thailand 5 0 2 (40%) 3 (60%)
Vietnam 4 1 (25%) 0 3 (75%)
Sweden 16 0 16 (100%) 0
Colombia 14 0 14 (100%) 0
USA 13 0 13 (100%) 0
Italy 11 0 11 (100%) 0
Iran 8 0 8 (100%) 0
India 6 0 6 (100%) 0
Kazakhstan 3 0 3 (100%) 0
Germany 3 0 3 (100%) 0
Chile 1 0 1 (100%) 0
Austria 1 0 1 (100%) 0
Australia 1 0 1 (100%) 0
non-East Asia 1 0 1 (100%) 0
Total 326 192 (59%) 115 (35%) 19 (6%)