Scratching with a poisoned needle

[benz72]

Originally Posted by malloyd

I'm not convinced there are any real poisons you can deliver a lethal dose via a "scratch", .

Po210?

From https://en.wikipedia.org/wiki/Polonium-210

"210Po is extremely toxic; it and other polonium isotopes are some of the most radiotoxic substances to humans.[6][16] With one microgram being more than enough to kill the average adult, 210Po is 250,000 times more toxic than hydrogen cyanide by weight;[17] it is also thought that one gram of 210Po is enough to kill 50 million people and sicken another 50 million.[6]"