Most babies born to first-cousins are healthyWA scientists are challenging the myth that inbreeding always leads to unhealthy babies.
The highly contentious, often-tabooed practice has in the past been linked to deformities such as heart disease, mental retardation, deafness and even blindness.
Australian research published in 2001 showed that babies born to first-cousins are nearly three times more likely to have serious birth defects.
But Professor Alan Bittles, an adjunct professor at the Centre for Comparative Genomics at Murdoch University, who has spent 30 years researching the topic says most children born to first-cousins are healthy.
In WA, about 500 marriages are between first-cousins.
Prof. Bittles was the lead speaker at the Royal Society of Medicine in East London this week where these divisions were hotly disputed.
Speakers at the event argued that warnings on the negative genetic consequences of such unions should be as prominent as alcohol and tobacco cautions.
Einstein and Darwin married their first-cousins, so did Jerry Lee Lewis and Jessie James and according to Prof. Bittles about 500 West Australians have followed suit.
First-cousin marriages are also a common tradition in countries such as Pakistan, south Asia and the Middle East.
“In reality there are over 1000 million people worldwide that live in regions where 20 – 50 per cent of marriages are between blood relatives.”
Prof. Bittles believes as more migrants move into Australian communities there will be a greater incidence of first-cousin marriages.
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