Dec. 12, 2004 — -- A Ukrainian presidential candidate's chief of staff believes "Soviet Union … sort of KGB experts" were behind a plot to poison his candidate, the aide told ABC News' "Good ...

LONDON — Ukrainian presidential candidate Viktor Yushchenko was poisoned with TCDD, the most harmful known dioxin and one contained in Agent Orange, a scientist who analyzed his blood said Friday. The ...

LONDON -- New tests reveal Ukrainian presidential candidate Viktor Yushchenko's blood contains the second-highest level of dioxin poisoning ever recorded in a human -- more than 6,000 times the normal ...

VIENNA, Austria - Ukrainian prosecutors reopened their investigation into allegations Viktor Yushchenko was poisoned after doctors who treated the opposition leader confirmed he had been slipped the ...

VIENNA, Austria (AP) -- Ukrainian presidential candidate Viktor Yushchenko was poisoned with dioxin, doctors said Saturday, adding that the highly toxic chemical could have been put in the opposition ...

The research suggests Yushchenko faces an increased risk of heart attack, cancer, diabetes, muscle aches, irritability, fatigue, immune deficiency and other less severe symptoms, but it is unclear how ...

Ukraine President Viktor Yushchenko, the populist politician who survived dioxin poisoning while forcing out Ukraine's pro-Russian government last year, was bestowed Tuesday with this year's John F.

KIEV, Ukraine (AP) -- Opposition leader Viktor Yushchenko said Thursday that he was sure he was poisoned by the Ukrainian government and believes it most likely happened at a dinner he had with the ...

VIENNA, Austria -- Ukrainian presidential candidate Viktor Yushchenko was poisoned with dioxin, doctors said Saturday, adding that the highly toxic chemical could have been put in the opposition ...

VIENNA, Austria - Dioxin poisoning caused the mysterious illness of Ukrainian opposition leader and presidential candidate Viktor Yushchenko, doctors said Saturday, adding it could have been put in ...