This is a sick hoax. This George Arlington, (who can be found googling their name), is a faker. The child has a differing age range, no Leukaemia or Cancer charities endorse this, and neither AOL, nor Zdnet, can track e-mail forwarding.
If you forward it, your e-mail can appear in a long list of others, and someone somewhere might decide to use your details, to attempt hacking, impersonations of you, create fake internet accounts, or sign you up for marketing stuff, newsletters, e-zines etc etc.
If you get any such e-mail, I suggest you Google the name George Arlington, find a site explaining the hoax, then forward the mail back the other way, with a link to the site that explains the hoax, so people can read the truth.
Such hoaxes, can compromise things like an e-mail address, and / or I.P. Stay safe yeah



