Was Bush Poisoned in Office?

This is jaw-droppingly astonishing -- from Laura Bush's upcoming memoir:

Her assertion that the U.S. presidential party attending the 2007 G-8 summit in Heiligendamm, Germany, might have been poisoned is also eyebrow-raising.

I arrived and began my events, but by the afternoon of [June] seventh, I could barely stand up. Over the next day nearly a dozen members of our delegation were stricken, even George, who started to feel sick during an early morning staff briefing. … [O]ne of our military aides had difficulty walking and a White House staffer lost all hearing in one ear. Exceedingly alarmed, the Secret Service went on full alert, combing the resort for potential poisons. ... The overriding fear was that terrorists had gotten control of a dangerous substance and planted it at the resort. ... [O]ur military aide's gait has never returned to normal, nor has our senior staffer regained full hearing in that ear. The most concrete conclusion any doctors could reach was that we contracted a virus.

I'm dumbfounded.