Colombian Blood Type

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I was recently reading the book 1491, by Charles Mann. As I read, I came across the mention of a genetic bottleneck that had occurred among the Native American Indians. One of the examples given in support of this genetic bottleneck idea was that there is a predominance of type O+ blood among people of the Americas. Intrigued, I checked my family's blood type and indeed, they are all O+. Hmmm.



While in Colombia, on July 20th, we participated in a Blood Drive that was held at our local church. When I told the workers my unusual blood type, they were pretty shocked. According to them, they had never seen anyone with my blood type. It kind of worried me. I hope that I never need a blood transfusion in Colombia.

Do you have O+ blood? Are you Colombian?

Comments

Carolina said…
Yes and so does my mom, dad and brother :)
October 20, 2010 at 7:33 AM
Kit said…
I am not Colombian but my husband is and both of us have O+. I'm pretty sure that guarantees that all of our kids will have it too.
October 22, 2010 at 3:19 PM
Unknown said…
My two colombian kids from Bucaramanga area are O+ and A+ :))) Sydney
October 29, 2010 at 4:53 AM
Anonymous said…
I'm a Colombian adoptee and I'm O+.
November 19, 2010 at 9:32 PM
Paige said…
I'm a Colombian adoptee and I'm O+.
November 19, 2010 at 9:35 PM
Sara said…
I am adopted from Bucaramanga and am O+
November 22, 2010 at 4:24 PM
Anonymous said…
Interesting. We're Colombian and my whole family is A+. Are you O+? I know it's the most common in most parts of the world including Colombia.
January 22, 2012 at 2:13 PM
Anonymous said…
My whole family is from Colombia too, we all have type A+ blood. Would this suggest European admixture?
March 27, 2012 at 1:15 PM
Unknown said…
Hmmm my wife was adopted from Colombia and she is B+. Must be a rarity in that region. Maybe that would help her to locate her family...
December 10, 2014 at 7:47 PM
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