Table 1

Assignments of 370 H. pyloriisolates from diverse continents to seven populations and subpopulations by Structure (no admixture). Language classifications were based on the Ethnologue online database (www. ethnologue.com). The two strains ofH. pylori whose genomes have been sequenced belong to hpEurope (26695, isolated in the UK) and hpAfrica1 (J99, isolated from a white American in Tennessee).

Code SourceNo. of isolates assigned to
RegionCountryEthnicLinguistichpEuropehpAfrica2hpAfrica1hpEastAsia
hspWAfricahspSAfricahspMaorihspAmerindhspEAsia
 1East AsiaKoreaKorean11
 2East AsiaSingaporeSino-Tibetan  2 9
 3IndiaLadakhNorth IndianSino-Tibetan 17
 4IndiaBangladeshi* Indo-European  9
 5AfricaSouth AfricaBlackNiger-Congo  2 717
 6AfricaSouth AfricaWhiteIndo-European 10 3 9
 7AfricaSouth AfricaCape Coloured Indo-European  4 625
 8AfricaBurkina FasoNiger-Congo12
 9AfricaSenegalNiger-Congo 5
10AfricaSudanSemitic  2
11N. AmericaUSAAfrican AmericanIndo-European  310
12N. AmericaUSAWhiteIndo-European  2 3
13N. AmericaCanada/USAInuitEskimo-Aleut  4 8
14N. AmericaCanadaAthabaskan Na-Dene 4
15S. AmericaColombiaMestizoIndo-European 11 1
16S. AmericaColombiaHuitoto Witotoan 12 4
17S. AmericaVenezuelaPiaroa Salivan  2 1 1
18AustralasiaNew ZealandPolynesian§ Austronesian  3 223
19AustralasiaAustraliaWhiteIndo-European  3
20EuropeUKIndo-European 19 1 1
21EuropeEstoniaUralic 11
22EuropeFinlandUralic  9
23EuropeGermanyIndo-European 12
24EuropeItalyIndo-European  6
25EuropeSpain| Indo-European 37
26EuropeGermanyTurkishAltaic 10
27Near EastIsraelSemitic  5
Other   5 2 5
Total200104351231726
  • * Isolates from Bangladeshis resident in the UK are listed here as being from India.

  • Speak English but with elements of Khoisan.

  • Collectively referred to as Amerinds in the text.

  • § Polynesian isolates were from 18 Maoris, 8 Samoans, and 2 Tongans in New Zealand.

  • | Includes two Basque speakers.

  • “Other” summarizes unique isolates from the following sources: hspEastAsia: Japan, China, Hong Kong, Thailand, and a Japanese from Peru; hpEurope: France, Lithuania, Holland, Thailand, and an Asian in Cape Town, South Africa; hspWAfrica: Gambia and Guatemala.