Rumors swirl, but a Swedish prosecutor will only confirm a "preliminary investigation" into allegations that pharma giant AstraZeneca fixed the Nobels for financial gainThey say it's Sweden's silly season, a time when journalists are desperately seeking a new spin on a century-old story: the Nobel Prizes.Last week, as luminaries gathered for Nobel Week in Stockholm, Radio Sweden reported a potential scandal surrounding the Physiology or Medicine prize. Allegations were swirling, the state-owned station said, that London-based drug manufacturer AstraZeneca, PLC, had, in essence, paid off members of the Nobel voting committee to help secure a win for Harald zur Hausen...