RH negative factor

[Duarte]

Most common blood type to the least common
Blood type
https://www.scbb.org/donor-informati...ight-time.html

Ethnic distribution of ABO (without Rh) blood types[42] (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	4	1
Belgians	47	42	8	3
Bororo (Brazil)	100	0	0	0
Brazilians	47	41	9	3
Bulgarians	32	44	15	8
Burmese	36	24	33	7
Buryats (Siberia)	33	21	38	8
Bushmen	56	34	9	2
Catalans	43	46	7.5	3.5
Chinese-Canton	46	23	25	6
Chinese-Ningbo	35	32	25	9
Chinese-Yangzhou	31	32	27	10
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	4
Dutch	45	43	9	3
Egyptians	33	36	24	8
English	47	42	9	3
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	3
Georgians	46	37	12	4
Germans	41	43	11	5
Greeks	40	42	14	5
Romani people(Hungary)	29	27	35	10
Hawaiians	37	61	2	1
Hindus (Bombay)	29	25	35	11
Hungarians	36	43	16	5
Icelanders	56	32	10	3
Indians (India)	29	21	40	9
Native Americans	79	16	4	1
Irish	52	35	10	3
Italians (Milan)	46	41	11	3
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	1
Koreans	28	32	31	10
Sami people	29	63	4	4
Latvians	32	37	24	7
Lithuanians	40	34	20	6
Malays	62	18	20	0
Māori	46	54	1	0
Mayans	98	1	1	1
Moros	64	16	20	0
Navajo Indians	73	27	0	0
Nicobarese	74	9	15	1
Norwegians	39	50	8	4
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	4
Romanians	33	43	16	8
Russians	33	36	23	8
Sardinians	50	26	19	5
Scots	51	34	12	3
Serbians	38	42	16	5
Shompen Nicobarese	100	0	0	0
Slovaks	42	37	16	5
Somalis[43]	50.1	29.6	15.2	5.1
South Africans	45	40	11	4
Spanish	38	47	10	5
Sudanese	62	16	21	0
Swedish	38	47	10	5
Swiss	40	50	7	3
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	4
White Americans	45	40	11	4
Vietnamese	42	22	30	5

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.^[44][45] It is believed to have been entirely absent from Native American and Australian Aboriginal populations prior to the arrival of Europeans in those areas.^[45][46]
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.<sup>[47][48]

Source: https://en.m.wikipedia.org/wiki/Bloo...ion_by_country</sup>

[Salento]

O + Milky-Way

[torzio]

O + Milky-Way

my father and sister has blood type O
my mother A+
me A+
Wife and all my children A-
paternal grandfather AB
father brother O
grandfather nephew AB ...................

[firetown]

I have recently posted that Poland has 19.67% rh negatives. Looking at national frequencies is important, but since nations can be quite genetically diverse, looking at regional data has proven to be even more informative. Due to my own ancestry, Silesia has been of great interest to me in terms of where the rh negative blood in my own family might come from.
The following study from 2017 will reveal that Lower Silesia has the highest frequency of rh negative people in all of Poland and also the highest frequency of blood type O. 21.1% rh negatives among women and 19.2% rh negatives among men. This is a huge difference between male and female data which needs to be further examined. Both, rh negative and blood type O frequencies have been decreasing drastically.

https://www.rhesusnegative.net/stayn...e-frequencies/

[Salento]

my father and sister has blood type O
my mother A+
me A+
Wife and all my children A-
paternal grandfather AB
father brother O
grandfather nephew AB ...................

R1 was blood type O

https://www.eupedia.com/forum/thread...l=1#post597231

[kingjohn]

blood groups ancient dna 🤔

http://mathii.github.io/2017/09/21/b...ancient-europe

[firetown]

R1 was blood type O

https://www.eupedia.com/forum/thread...l=1#post597231

More than half of Northern Ireland is blood type O. More than 27% RH Negative.

[Duarte]

My posts, moved from the wrong thread to the right thread (this one):

-----------------------------------------------------------------------------------------------------------------------------------------------------------------
Originally Posted by Regio X:
These are very interesting infos. Thank you.


As for when the deletion ocurred, a curiosity is that these variations may be observed in primates.


"Chimpanzees have been found thus far to have primarily type A blood, with type O less commonly. Gorillas appear to be exclusively type B. Orangutans express all three blood types."
https://carta.anthropogeny.org/moca/...and-prevalence
Monkey Rhesus would be exclusively B, as Gorillas.


I guess the prevalence of one over the others may be sometimes related to environment/selection (as possibly RH- in Steppe?).


As for blood type in my family, in theory my parents, as AO, would have 25% of chances of having an AA child, but I'm AO after all, according to 23andMe Raw Data. My parents and my siblings are all RH+, as myself, my wife (O+) and my son (A+). However, my O+ brother has an O- daughter, which means that he's heterozygous. The odds are that just one of my parents is RH heterozygous, since they had 5 children, and all RH+.


Reply: Me: A RH+. My wife: A RH-. My son: A RH-. My mother: A RH+. My father: O RH+.
------------------------------------------------------------------------------------------------------------------------------------------------------------------
Originally Posted by firetown:

AO rh+/-


Reply: Yes. Conclusion: I am heterozygous in the RH factor and I am heterozygous in the ABO classification system. This means that I am more healthy? I don’t Know
But, in fact, I am a healthy person, thanks God.


---------------------------------------------------------------------------------------------------------------------------------------------------------------------
Originally Posted by firetown:
Rh blood group system wise for the most part.
ABO wise it depends. As I have posted above, when it comes to COVID-19, malaria and a few others, being phenotype A may carry some disadvantages.


By the way:


In European populations Rh positive heterozygotes seem most frequent over rh negative and rh positive homozygotes.


https://journals.plos.org/plosone/ar...l.pone.0141362


Reply: Thank you for providing the link to the paper.
Cheers :)


--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Originally Posted by Regio X:
Out of curiosity:
"The research, carried out in collaboration with the IRCCS San Camillo Hospital Foundation in Venice, shows that people with an ‘O’ blood type have more grey matter in their brain, which helps to protect against diseases such as Alzheimer’s, than those with ‘A’, ‘B’ or ‘AB’ blood types."
https://www.sheffield.ac.uk/news/nr/...sease-1.469296
See also:
https://www.sciencedirect.com/scienc...61923015000805


Reply: Dear Regio X,
Maybe my dad is a point off the curve, then. Intelligent, politicized, cultured, a great classical music lover, he gave me classes in public accounting and balance sheet analysis, when I knew nothing about it, providing me with a wide range of books and preparing exercises to train me. I owe a big part of my personal and professional success to him. He retired and remained a great devourer of books and newspapers. Sometimes I had a hard time keeping up with his quick thinking. At 80 he was diagnosed with Alzheimer's disease. At 84 he was admitted, when his brain could no longer control even his breathing. He died after 3 months in an ICU. I am flattered when the paternal and maternal family members say that I am the son who most resembles him physically: “The father's features and the mother's skin tone”. He was blood type O, factor RH +. According to the doctor, he resisted because he was a strong man with a healthy heart, who insisted on continuing to beat. My biggest fear: Having Alzheimer and dying the same way he died
Cheers
-------------------------------------------------------------------------------------------------------------------------------------------------------------------

[firetown]

Good idea. Since it connects to COVID-19 and rh negative blood, here again is my post connecting the both:
COVID-19 deaths: 1 out of 45 Rh- and 1 out of 8 Rh+ patients (NYP/CUIMC)

Among the patients with Rh(D) positive blood groups, 1 in 8 died.
Among the patients with Rh(D) negative blood groups, 1 in 45 died.