Can elves die by being poisined???

[Tuor Turambar,Cursed by the Valar]

Biological warfare?! OMG... this is The Lord of the Rings we're talking about, not the latest X-Box game

What is so farfetched about biological warfare? All biological warfare is is introducing a disease into a sustem that cannot handle it. DEAD COWS AND A CATAPULT!!! What is wrong with this situaltion? Nothing.

"No sickness nor pestilence brought death to them"

I do not mean to be picky, but just because it DID not bring death did not mean it CAN not bring death. This is the literal meaning of the quote.