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越南發現同母異父雙胞胎

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A pair of Vietnamese fraternal twins have been confirmed to have different fathers, a local genetic association has told the BBC. The twins had their DNA tested after their family noticed they looked different, said local reports.
當地一家遺傳機構接受BBC採訪時透露,一對越南的異卵雙胞胎已被證實來自不同的父親。據當地媒體報道,該雙胞胎在其家屬覺察長相不同後,接受了DNA測試。

The occurrence, known as heteropaternal superfecundation, is rare with few publicly known about. It happens when a woman's eggs are fertilised by two men within a short period of time.
發生的這一案例被稱爲異父超級受精,這是一種鮮爲公衆所知的罕見案例。這隻會發生在女性的一個卵子在短時間內被兩名男性的精子受精的情況下。

Professor Le Dinh Luong, president of the Hanoi-based Vietnam Genetic Association which did the DNA testing, said the results were "100% correct" in what he called "an extremely rare case".
總部位於河內的越南遺傳學會負責了本次DNA測試,其董事長Le Dinh Luong教授表示,這個“極爲罕見的案例”的測試結果“百分百正確”。

越南發現同母異父雙胞胎

"There are only less than 10 known cases of twins with different fathers in the world. There might be other cases but the parents and/or the twins were not aware of it or didn't want to announce it," he told the BBC's Nga Pham.
他告訴BBC的記者Nga Pham稱:“世界上僅有不到10例這種擁有不同父親的雙胞胎案例。當然也可能存在有其他案例,但其父母或雙胞胎並沒有意識到或者不想公佈。”

He declined to give further details citing client confidentiality, but added that local reports stating the twins' location, names and timeframe were inaccurate.
他拒絕進一步提供關於該用戶隱私的細節,但他補充說道,當地報道公佈雙胞胎的地址、姓名和出生時間表是不正確的。

Reported cases are very rare - the last case was in 2015 involving twin girls in New Jersey, only the third such case to ever occur in the US. Turkish media reported a similar case in 2010 involving twin boys.
被報道的類似案例極少。上一個類似案例是2015年新澤西州的兩個雙胞胎女孩,這也僅僅是在美國發生的第三個案例。此外,土耳其媒體也於2010年報道過一對雙胞胎男孩的類似案例。