然而，(真相)终究大白于天下，(原来)所谓加洛博士的病毒的来源是蒙塔尼博士的实验室虽然罪魁祸首极有可能是被污染的实验样品，但蒙塔尼博士实验室的病毒如何跑到加洛博士却从未有充分证据证明。

It turned out, however, that Dr Gallo's virus had come from Dr Montagnier's laboratory. It was never conclusively proved how, though a contaminated sample may have been to blame.

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