Blood Type distribution by Country - wikipedia Blood Type distribution by Country Contents 1 ABO and distribution by country 2 Maps of allele ABO among native populations 3 References 4 See also ABO and distribution by Country This section 's factual accuracy is disputed. Relevant discussion may be found on Talk : Blood type distribution by country. Please help to ensure that disputed statements are reliably sourced. ( April 2012 ) ABO and Rh blood type distribution by country ( population averages ) Country Population O+ A+ B+ AB+ O − A − B − AB − Argentina 44,270,440 45.4 % 34.26 % 8.59 % 2.64 % 8.4 % 0.44 % 0.21 % 0.06 % Armenia 2,931,568 29.0 % 46.3 % 12.0 % 5.6 % 2.0 % 3.7 % 1.0 % 0.4 % Australia 24,642,693 40.0 % 31.0 % 8.0 % 2.0 % 9.0 % 7.0 % 2.0 % 1.0 % Austria 8,592,470 30.0 % 33.0 % 12.0 % 6.0 % 7.0 % 8.0 % 3.0 % 1.0 % Bahrain 1,418,695 48.48 % 19.35 % 22.61 % 3.67 % 3.27 % 1.33 % 1.04 % 0.25 % Bangladesh 164,833,667 31.18 % 21.44 % 34.58 % 8.85 % 1.39 % 0.96 % 0.96 % 0.64 % Belgium 11,444,053 38.0 % 34.0 % 8.6 % 4.1 % 7.0 % 6.0 % 1.5 % 0.8 % Bolivia 11,053,376 51.53 % 29.45 % 10.11 % 1.15 % 4.39 % 2.73 % 0.54 % 0.1 % Bosnia and Herzegovina 3,792,730 31.0 % 36.0 % 12.0 % 6.0 % 5.0 % 7.0 % 2.0 % 1.0 % Brazil 211,248,418 36.0 % 34.0 % 8.0 % 2.5 % 9.0 % 8.0 % 2.0 % 0.5 % Bulgaria 7,045,097 28.0 % 37.0 % 13.0 % 7.0 % 5.0 % 7.0 % 2.0 % 1.0 % Cambodia 16,077,172 46.7 % 27.2 % 18.5 % 4.9 % 1.3 % 0.8 % 0.5 % 0.1 % Cameroon 24,515,533 42.8 % 38.8 % 12.0 % 3.3 % 1.4 % 1.2 % 0.4 % 0.1 % Canada 36,627,140 39.0 % 36.0 % 7.6 % 2.5 % 7.0 % 6.0 % 1.4 % 0.5 % Chile 18,314,060 85.5 % 8.7 % 3.35 % 1.0 % 1.2 % 0.1 % 0.05 % 0.1 % China 1,388,251,023 47.7 % 27.8 % 18.9 % 5.0 % 0.28 % 0.19 % 0.1 % 0.03 % Colombia 49,069,267 61.3 % 26.11 % 2.28 % 1.47 % 5.13 % 2.7 % 0.7 % 0.31 % Côte d'Ivoire 23,869,656 46.5 % 22.5 % 22.5 % 4.3 % 2.0 % 1.0 % 1.0 % 0.2 % Croatia 4,207,355 29.0 % 36.0 % 15.0 % 5.0 % 5.0 % 6.0 % 3.0 % 1.0 % Cuba 11,486,750 45.8 % 33.5 % 10.2 % 2.9 % 3.6 % 2.8 % 1.0 % 0.2 % Cyprus 1,189,395 35.22 % 40.35 % 11.11 % 4.72 % 3.85 % 3.48 % 0.87 % 0.40 % Czech Republic 10,555,152 27.0 % 36.0 % 15.0 % 7.0 % 5.0 % 6.0 % 3.0 % 1.0 % Denmark 5,711,902 35.0 % 37.0 % 8.0 % 4.0 % 6.0 % 7.0 % 2.0 % 1.0 % Dominican Republic 10,766,932 46.2 % 26.4 % 16.9 % 3.1 % 3.7 % 2.1 % 1.4 % 0.2 % Ecuador 16,665,756 75.0 % 14.0 % 7.1 % 0.5 % 2.38 % 0.7 % 0.3 % 0.02 % Egypt 95,220,838 52.0 % 24.0 % 12.4 % 3.8 % 5.0 % 2.0 % 0.6 % 0.2 % El Salvador 6,171,483 62.0 % 23.0 % 11.0 % 1.0 % 1.0 % 1.0 % 0.7 % 0.3 % Estonia 1,305,745 29.5 % 30.8 % 20.7 % 6.3 % 4.3 % 4.5 % 3.0 % 0.9 % Ethiopia 104,352,727 39.0 % 28.0 % 21.0 % 5.0 % 3.0 % 2.0 % 1.0 % 1.0 % Finland 5,541,328 27.0 % 38.0 % 15.0 % 7.0 % 4.0 % 6.0 % 2.0 % 1.0 % France 64,939,560 36.0 % 37.0 % 9.0 % 3.0 % 6.0 % 7.0 % 1.0 % 1.0 % Germany 80,635,980 35.0 % 37.0 % 9.0 % 4.0 % 6.0 % 6.0 % 2.0 % 1.0 % Greece 10,892,849 37.4 % 32.9 % 11.0 % 3.7 % 7.0 % 5.0 % 2.0 % 1.0 % Guinea 13,291,741 46.88 % 21.64 % 22.86 % 4.52 % 2.0 % 0.9 % 1.0 % 0.2 % Honduras 9,348,898 57.5 % 27.0 % 7.8 % 2.5 % 2.7 % 1.7 % 0.6 % 0.2 % Hong Kong 7,402,115 41.5 % 26.13 % 25.34 % 6.35 % 0.32 % 0.17 % 0.14 % 0.05 % Hungary 9,787,801 27.0 % 33.0 % 16.0 % 8.0 % 5.0 % 7.0 % 3.0 % 1.0 % Iceland 334,311 47.6 % 26.4 % 9.3 % 1.6 % 8.4 % 4.6 % 1.7 % 0.4 % India 1,342,561,902 27.85 % 20.8 % 38.14 % 8.93 % 1.43 % 0.57 % 1.79 % 0.49 % Indonesia 263,519,317 36.82 % 25.87 % 28.85 % 7.96 % 0.18 % 0.13 % 0.15 % 0.04 % Iran 80,982,137 33.5 % 27.0 % 22.2 % 7.0 % 4.0 % 3.0 % 2.5 % 0.8 % Iraq 38,657,787 32.1 % 25.0 % 25.6 % 7.4 % 3.6 % 2.7 % 2.7 % 0.9 % Ireland 4,749,263 47.0 % 26.0 % 9.0 % 2.0 % 8.0 % 5.0 % 2.0 % 1.0 % Israel 8,323,659 32.0 % 34.0 % 17.0 % 7.0 % 3.0 % 4.0 % 2.0 % 1.0 % Italy 59,797,969 39.0 % 36.0 % 7.5 % 2.5 % 7.0 % 6.0 % 1.5 % 0.5 % Jamaica 2,813,316 47.0 % 23.0 % 20.0 % 3.0 % 3.5 % 2.0 % 1.0 % 0.5 % Japan 126,044,340 29.9 % 39.8 % 19.9 % 9.9 % 0.15 % 0.2 % 0.1 % 0.05 % Kenya 48,470,780 45.6 % 25.2 % 21.28 % 4.2 % 1.8 % 1.0 % 0.9 % 0.02 % Latvia 1,944,122 30.6 % 31.0 % 17.0 % 6.0 % 5.4 % 6.0 % 3.0 % 1.0 % Lebanon 6,039,438 38.4 % 32.3 % 9.5 % 3.2 % 7.7 % 6.5 % 1.7 % 0.7 % Libya 6,408,990 42.64 % 28.86 % 11.19 % 4.5 % 6.26 % 4.24 % 1.64 % 0.67 % Lithuania 2,827,573 36.0 % 33.0 % 11.0 % 4.0 % 7.0 % 6.0 % 2.0 % 1.0 % Luxemburg 587,297 35.0 % 37.0 % 9.0 % 4.0 % 6.0 % 6.0 % 2.0 % 1.0 % Macao 606,413 41.5 % 26.1 % 25.4 % 6.3 % 0.33 % 0.17 % 0.15 % 0.05 % Macedonia 2,083,690 30.0 % 34.0 % 15.0 % 6.0 % 5.0 % 6.0 % 3.0 % 1.0 % Malaysia 31,165,480 34.32 % 30.35 % 27.37 % 7.46 % 0.17 % 0.15 % 0.14 % 0.04 % Mauritania 4,266,765 46.3 % 26.68 % 17.47 % 3.85 % 2.8 % 1.6 % 1.1 % 0.2 % Mauritius 1,267,303 38.3 % 26.0 % 25.0 % 6.7 % 1.7 % 1.0 % 1.0 % 0.3 % Mexico 130,227,836 55.79 % 29.9 % 8.0 % 1.63 % 2.7 % 1.5 % 0.4 % 0.08 % Mongolia 3,052,044 55.4 % 27.7 % 10.9 % 4.96 % 0.6 % 0.3 % 0.1 % 0.04 % Myanmar 53,507,932 35.7 % 23.8 % 32.7 % 6.95 % 0.3 % 0.2 % 0.3 % 0.05 % Nepal 29,188,100 35.2 % 28.3 % 27.1 % 8.6 % 0.3 % 0.2 % 0.2 % 0.1 % Netherlands 17,033,012 39.5 % 35.0 % 6.7 % 2.5 % 7.5 % 7.0 % 1.3 % 0.5 % New Zealand 4,604,996 38.0 % 32.0 % 9.0 % 3.0 % 9.0 % 6.0 % 2.0 % 1.0 % Nigeria 191,851,411 51.3 % 22.4 % 20.7 % 2.6 % 1.6 % 0.7 % 0.6 % 0.1 % Norway 5,330,986 33.0 % 41.5 % 6.8 % 3.4 % 6.0 % 7.5 % 1.2 % 0.6 % North Korea 25,432,033 27.15 % 31.08 % 30.15 % 11.32 % 0.08 % 0.1 % 0.1 % 0.03 % Pakistan 180,440,005 24.63 % 20.6 % 34.40 % 9.52 % 4.17 % 2.66 % 3.57 % 0.45 % Papua New Guinea 7,952,511 48.0 % 37.2 % 9.6 % 2.8 % 1.0 % 0.8 % 0.4 % 0.2 % Peru 32,167,717 70.0 % 18.4 % 7.8 % 1.6 % 1.4 % 0.5 % 0.28 % 0.02 % Philippines 103,801,747 36.9 % 28.9 % 26.9 % 6.97 % 0.1 % 0.1 % 0.1 % 0.03 % Poland 38,563,480 31.0 % 32.0 % 15.0 % 7.0 % 6.0 % 6.0 % 2.0 % 1.0 % Portugal 10,264,672 36.3 % 40.0 % 6.6 % 2.9 % 6.0 % 6.6 % 1.1 % 0.5 % Republic of Moldova 4,043,722 28.5 % 31.8 % 17.6 % 7.0 % 5.0 % 6.0 % 3.0 % 1.1 % Romania 19,237,087 28.0 % 37.0 % 14.0 % 7.0 % 5.0 % 6.0 % 2.0 % 1.0 % Russia 143,374,801 28.0 % 30.0 % 20.0 % 7.0 % 4.9 % 5.8 % 3.2 % 1.1 % Saudi Arabia 32,744,532 47.8 % 23.9 % 17.0 % 4.0 % 4.0 % 2.0 % 1.0 % 0.3 % Serbia 8,776,827 31.92 % 35.28 % 12.6 % 4.2 % 6.08 % 6.72 % 2.4 % 0.8 % Singapore 5,784,819 43.6 % 23.9 % 24.4 % 6.0 % 0.9 % 0.7 % 0.4 % 0.1 % Slovakia 5,432,265 27.2 % 35.7 % 15.3 % 6.8 % 4.8 % 6.3 % 2.7 % 1.2 % Slovenia 2,071,258 31.0 % 33.0 % 12.0 % 6.0 % 7.0 % 7.0 % 3.0 % 1.0 % South Africa 55,437,815 39.0 % 32.0 % 12.0 % 3.0 % 6.0 % 5.0 % 2.0 % 1.0 % South Korea 50,748,307 27.9 % 33.87 % 26.92 % 10.98 % 0.1 % 0.13 % 0.08 % 0.02 % Spain 46,070,163 36.0 % 34.0 % 8.0 % 2.5 % 9.0 % 8.0 % 2.0 % 0.5 % Sudan 40,827,975 48.0 % 27.7 % 15.2 % 2.8 % 3.5 % 1.8 % 0.8 % 0.2 % Sweden 9,920,843 32.0 % 37.0 % 10.0 % 5.0 % 6.0 % 7.0 % 2.0 % 1.0 % Switzerland 8,454,321 35.0 % 40.0 % 7.0 % 3.0 % 6.0 % 7.0 % 1.0 % 1.0 % Syria 18,920,698 43.0 % 30.0 % 14.0 % 3.7 % 5.0 % 3.0 % 1.0 % 0.3 % Taiwan 23,234,936 43.9 % 25.9 % 23.9 % 6.0 % 0.17 % 0.1 % 0.01 % 0.02 % Thailand 68,298,027 40.8 % 16.9 % 36.8 % 4.97 % 0.2 % 0.1 % 0.2 % 0.03 % Turkey 80,420,065 29.8 % 37.8 % 14.2 % 7.2 % 3.9 % 4.7 % 1.6 % 0.8 % Uganda 43,276,492 43.7 % 39.0 % 10.7 % 3.9 % 1.3 % 1.0 % 0.3 % 0.1 % Ukraine 44,404,078 32.0 % 34.0 % 15.0 % 5.0 % 5.0 % 6.0 % 2.0 % 1.0 % United Arab Emirates 3,398,017 44.1 % 21.9 % 20.9 % 4.3 % 4.3 % 2.1 % 2.0 % 0.4 % United Kingdom 65,512,375 37.0 % 35.0 % 8.0 % 3.0 % 7.0 % 7.0 % 2.0 % 1.0 % United States 326,481,533 37.4 % 35.7 % 8.5 % 3.4 % 6.6 % 6.3 % 1.5 % 0.6 % Venezuela 32,011,082 58.5 % 28.3 % 5.3 % 1.8 % 3.5 % 1.7 % 0.7 % 0.2 % Vietnam 95,414,640 41.7 % 21.9 % 30.8 % 4.98 % 0.3 % 0.1 % 0.2 % 0.02 % Zimbabwe 16,642,880 63.3 % 18.5 % 14.6 % 0.99 % 1.7 % 0.5 % 0.4 % 0.01 % World 6,635,281,257 38.67 % 27.42 % 22.02 % 5.88 % 2.55 % 1.99 % 1.11 % 0.36 % 50.0 % and above 40.0 -- 49.9 % 30.0 -- 39.9 % 20.0 -- 29.9 % 10.0 -- 19.9 % 5.0 -- 9.9 % Ethnic distribution of ABO ( without Rh ) blood types ( This table has more entries than the table above but does not distinguish between Rh types. ) People group O ( % ) A ( % ) B ( % ) AB ( % ) Aboriginal people 61 39 0 0 Abyssinians 43 27 25 5 Ainu ( Japan ) 17 32 32 18 Albanians 38 43 13 6 Grand Andamanese 9 60 23 9 Arabs 34 31 29 6 Armenians 31 50 13 6 Asian Americans 40 28 27 5 Austrians 36 44 13 6 Bantus 46 30 19 5 Basques 51 44 Belgians 47 42 8 Bororo ( Brazil ) 100 0 0 0 Brazilians 47 41 9 Bulgarians 32 44 15 8 Burmese 36 24 33 7 Buryats ( Siberia ) 33 21 38 8 Bushmen 56 34 9 Chinese - Canton 46 23 25 6 Chinese - Peking 29 27 32 13 Chuvash 30 29 33 7 Croats 42 34 17 7 Czechs 30 44 18 9 Danes 41 44 11 Dutch 45 43 9 Egyptians 33 36 24 8 English 47 42 9 Inuit ( Alaska ) 38 44 13 5 Inuit ( Greenland ) 54 36 23 8 Estonians 34 36 23 8 Fijians 44 34 17 6 Finns 34 41 18 7 French 43 47 7 Georgians 46 37 12 Germans 41 43 11 5 Greeks 40 42 14 5 Romani people ( Hungary ) 29 27 35 10 Hawaiians 37 61 Hindus ( Bombay ) 29 25 35 11 Hungarians 36 43 16 5 Icelanders 56 32 10 Indians ( India ) 29 21 40 9 Native Americans 79 16 Irish 52 35 10 Italians ( Milan ) 46 41 11 Japanese 30 38 22 10 Jews ( Germany ) 42 41 12 5 Jews ( Poland ) 33 41 18 8 Kalmuks 26 23 41 11 Kikuyu ( Kenya ) 60 19 20 Koreans 28 32 31 10 Sami people 29 63 Latvians 32 37 24 7 Lithuanians 40 34 20 6 Malays 62 18 20 0 Māori 46 54 0 Mayans 98 Moros 64 16 20 0 Navajo Indians 73 27 0 0 Nicobarese 74 9 15 Norwegians 39 50 8 Papuans ( New Guinea ) 41 27 23 9 Persians 38 33 22 7 Peruvian Indians 100 0 0 0 Filipinos 45 22 27 6 Poles 33 39 20 9 Portuguese 35 53 8 Romanians 33 43 16 8 Russians 33 36 23 8 Sardinians 50 26 19 5 Scots 51 34 12 Serbians 38 42 16 5 Shompen Nicobarese 100 0 0 0 Slovaks 42 37 16 5 South Africans 45 40 11 Spanish 38 47 10 5 Sudanese 62 16 21 0 Swedish 38 47 10 5 Swiss 40 50 7 Tatars 28 30 29 13 Thais 37 22 33 8 Turks 43 34 18 6 Ukrainians 37 40 18 6 Black Americans 49 27 20 White Americans 45 40 11 Vietnamese 42 22 30 5 Mean 43.91 34.80 16.55 5.14 Standard deviation 16.87 13.80 9.97 3.41 Blood group B has its highest frequency in South Asia where it ranks first as the largest share of the earth 's population. In Southeast Asia the share of the population is high, especially in Thailand and Indonesia, then in East Asia, Northern Asia and neighboring Central Asia, and its incidence diminishes both towards the east and the west, falling to single digit percentages in Netherlands, Norway, Portugal and Switzerland. It is believed to have been entirely absent from Native American and Australian Aboriginal populations prior to the arrival of Europeans in those areas. Blood group A is associated with high frequencies in Europe, especially in Scandinavia and Central Europe, although its highest frequencies occur in some Australian Aboriginal populations and the Blackfoot Indians of Montana, the US. Maps of allele ABO among native populations Map of allele A among native populations Map of allele B among native populations Map of allele O among native populations References Jump up ^ CIA World Factbook Jump up ^ `` Study of Blood Immunogenetical Markers in Armenian Population '' ( PDF ). 1989. Jump up ^ Blood Types - What Are They ?, Australian Red Cross Jump up ^ `` Austrian Red Cross - Blood Donor Information ''. Old.roteskreuz.at. 2006 - 03 - 21. Retrieved 2010 - 11 - 19. Jump up ^ `` Rode Kruis Wielsbeke - Blood Donor information material ''. Rodekruiswielsbeke.be. Archived from the original on 26 November 2010. Retrieved 2010 - 11 - 19. Jump up ^ Tipos Sanguíneos Archived 9 March 2013 at the Wayback Machine. Jump up ^ Canadian Blood Services - Société canadienne du sang. `` Types & Rh System, Canadian Blood Services ''. Retrieved 2010 - 11 - 19. Jump up ^ - ΚENTΡΟ ΑΙΜΑΤΟΣ Jump up ^ Czech Red Cross. `` Podíl krevních skupin v populaci České republiky ''. Archived from the original on 24 June 2009. Retrieved 2011 - 03 - 18. Jump up ^ Frequency of major blood groups in the Danish population. Jump up ^ `` ¿ Por qué donar Sangre ? ¡ Para Salvar Vidas ! '' ( Why donate blood ? to save lives ! ). Cruz Roja Salvadoreña ( in Spanish ). Retrieved 2017 - 11 - 23. Jump up ^ `` Veregruppidest '' ( Blood groups ). verekeskus.ee ( in Estonian ). Retrieved 2017 - 11 - 23. Jump up ^ `` Suomalaisten veriryhmäjakauma '' ( in Finnish ). 2009 - 08 - 21. Retrieved 2010 - 11 - 19. Jump up ^ `` Les groupes sanguins ( système ABO ) ''. Centre Hospitalier Princesse GRACE - Monaco ( in French ). C.H.P.G. MONACO. 2005. Retrieved 2008 - 07 - 15. Jump up ^ `` Blóðflokkar '' ( in Icelandic )... landspitali.is. Archived from the original on 2011 - 07 - 19. Retrieved 2010 - 11 - 19. Jump up ^ `` Blood Type Frequencies by Country including the Rh Factor ''. Jump up ^ `` Irish Blood Transfusion Service - Irish Blood Group Type Frequency Distribution ''. Irish Blood Transfusion Service. Retrieved 2009 - 11 - 07. Jump up ^ `` The national rescue service in Israel '' ( in Hebrew ). Mdais.org. Archived from the original on 26 November 2010. Retrieved 2010 - 11 - 19. Jump up ^ `` Blood Types in Jamaica ''. National Blood Transfusion Service. Retrieved 2017 - 11 - 23. Jump up ^ `` 血液 の 知識 ''. Japanese Red Cross Society. Archived from the original on 2012 - 07 - 29. Retrieved 2012 - 08 - 07. Jump up ^ `` Croix Rouge ''. Retrieved 2017 - 01 - 21. Jump up ^ `` Voorraad Erytrocytenconcentraten Bij Sanquin '' ( in Dutch ). Archived from the original on 26 June 2009. Retrieved 2009 - 03 - 27. Jump up ^ `` What are Blood Groups ? ''. NZ Blood. Retrieved 2010 - 11 - 19. Jump up ^ `` Hva er en blodtype ? '' ( What is a blood type ? ) ( in Norwegian ). Retrieved 2014 - 09 - 23. Jump up ^ `` Philippine Red Cross ''. Retrieved 2014 - 07 - 15. Jump up ^ `` Regionalne Centrum Krwiodawstwa i Krwiolecznictwa we Wroclawiu '' ( in Polish ). Rckik.wroclaw.pl. 2010 - 09 - 02. Retrieved 2010 - 11 - 19. Jump up ^ `` Portuguese Blood Institute '' ( in Portuguese ). ( assuming Rh and AB antigens are independent ) Jump up ^ Sanguina Jump up ^ BASHAWRI, Layla A. ; AL - MULHIMiz, Abdul Az ; AHMAD, Malik S. ( 2001 ). `` Frequency of ABO blood groups in the eastern region of Saudi Arabia ''. Saudi Medical Journal. 22 ( 11 ) : 1008 -- 1101. ISSN 0379 - 5284. PMID 11744976. Jump up ^ `` Najčastejšie otázky '' ( Frequently Asked Questions ) ( in Slovak ). Národná transfúzna služba SR. Retrieved 2017 - 09 - 22. Jump up ^ `` What 's Your Type ? ''. South African National Blood Service. Archived from the original on 2010 - 02 - 06. Retrieved 2010 - 11 - 19. Jump up ^ `` Federación Nacional de Donantes de Sangre / La sangre / Grupos ''. Donantesdesangre.net. Retrieved 2010 - 11 - 19. Jump up ^ `` Frequency of major blood groups in the Swedish population ''. Geblod.nu. 2007 - 10 - 02. Archived from the original on 24 November 2010. Retrieved 2010 - 11 - 19. Jump up ^ - BLUTSPENDE https://www.blutspende.ch/fr/don_de_sang/sanguin_groupe/groupe_sanguin - BLUTSPENDE Check url = value ( help ). Missing or empty title = ( help ) Jump up ^ `` Turkey Blood Group Site ''. Kangrubu.com. Archived from the original on 29 May 2010. Retrieved 2010 - 11 - 19. Jump up ^ `` Blood Group Basics ''. Blood.co.uk. Retrieved 2017 - 07 - 30. Jump up ^ `` Blood Types in the U.S ''. Archived from the original on 2011 - 07 - 19. Retrieved 2011 - 07 - 19. CS1 maint : BOT : original - url status unknown ( link ) Jump up ^ `` preguntas - frecuentes '' ( in Spanish ). Retrieved 2014 - 09 - 23. Jump up ^ `` Racial and ethnic distribution of ABO blood types ''. Bloodbook.com. Retrieved 2010 - 08 - 01. Jump up ^ Blood Transfusion Division, United States Army Medical Research Laboratory ( 1971 ). Selected contributions to the literature of blood groups and immunology. 1971 v. 4. United States Army Medical Research Laboratory, Fort Knox, Kentucky... In northern India, in Southern and Central China and in the neighboring Central Asiatic areas, we find the highest known frequencies of B. If we leave this center, the frequency of the B gene decreases almost everywhere... ^ Jump up to : Encyclopædia Britannica ( 2002 ). The New Encyclopædia Britannica. Encyclopædia Britannica, Inc. ISBN 0 - 85229 - 787 - 4... The maximum frequency of the B gene occurs in Central Asia and northern India. The B gene was probably absent from Native Americans and Australian Aboriginal people before racial admixture occurred with the coming of the white man... Jump up ^ Carol R. Ember, Melvin Ember ( 1973 ). Anthropology. Appleton - Century - Crofts... Blood type B is completely absent in most North and South American Indians... Jump up ^ Dean 2005, 2.1. 4 : Blood Type A : Central and Eastern Europe Type A is common in Central and Eastern Europe. In countries such as Austria, Denmark, Norway, and Switzerland, about 45 -- 50 % of the population have this blood type, whereas about 40 % of Poles and Ukrainians do so. The highest frequencies are found in small, unrelated populations. For example, about 80 % of the Blackfoot Indians of Montana have blood type A... Jump up ^ Technical Monograph No. 2 : The ABO Blood Group System and ABO Subgroups ( PDF ). Biotec. March 2005. Archived from the original ( PDF ) on 6 February 2007... The frequency of blood group A is quite high ( 25 -- 55 % ) in Europe, especially in Scandinavia and parts of central Europe. High group A frequency is also found in the Aboriginal people of South Australia ( up to 45 % ) and in certain American Indian tribes where the frequency reaches 35 %... See also Blood type ABO blood group system Human genetics Sub-topics Evolutionary genetics Genetic engineering Genetic variation Race and genetics Human genome Timeline Genetic genealogy Genealogical DNA test Surname DNA project Blood type distribution by country Population genetics by region Americas Europe British Isles African admixture Iberia Italy Near East North Africa Egypt Morocco South Asia Population genetics Albanians Arabs Azerbaijanis Basques Bosniaks Bulgarians Croats Gujaratis Hutu and Tutsi Jews Romanians Russians Sami Serbs Sinhalese Sri Lankan Tamils Turks Retrieved from `` https://en.wikipedia.org/w/index.php?title=Blood_type_distribution_by_country&oldid=832740512 '' Categories : Blood Human genetics Hidden categories : Webarchive template wayback links CS1 Spanish - language sources ( es ) CS1 Estonian - language sources ( et ) CS1 Finnish - language sources ( fi ) All articles with dead external links Articles with dead external links from November 2016 Articles with permanently dead external links CS1 French - language sources ( fr ) CS1 Icelandic - language sources ( is ) CS1 Hebrew - language sources ( he ) CS1 Dutch - language sources ( nl ) CS1 Norwegian - language sources ( no ) CS1 Polish - language sources ( pl ) CS1 Portuguese - language sources ( pt ) CS1 Slovak - language sources ( sk ) Pages with citations lacking titles Pages with citations having bare URLs Pages with URL errors CS1 maint : BOT : original - url status unknown Accuracy disputes from April 2012 All accuracy disputes Use dmy dates from March 2017 Talk Contents About Wikipedia বাংলা Svenska 中文 Edit links This page was last edited on 27 March 2018, at 19 : 05. 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Question: what is the least common blood type in the usa
Answer: AB−