And before snatching people's lives, this terrible killer can torment sufferers for many years. It leaves some bedridden and paralyzed, utterly dependent on other people to eat, drink, urinate and defecate. In other cases, it can cause coma, dementia, loss of speech or other serious problems.
更甚者，這個可怕殺手在奪取人命之前，還可能折磨病患數年，有人會半癱躺在病床上，吃喝拉撒都需人照顧；有人意識不清、痴呆、失語等，後遺症嚴重。