Only around 17% of Ireland is Rh negative

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Sure, that isn’t exactly a low number, but I would have expected much higher frequencies.

Were the numbers a lot higher at one point?

Did the potato famine kill more Rh negatives or were Rh negatives more likely to migrate?

Either way, Northern Ireland remains at more than 27% Rh negative.

The Irish and the Scottish are also reasons for high Rh- frequencies in Australia.

While Celtic Nations tend to have high percentages of Rh- blood, Wales seems to also have no higher numbers than the European average.

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