There may be something to it. On a slightly different tack, when my aunt died of cancer, it was remarked that the cancer occurred right where she had been complaining for years of a pain in her back, where she had experienced a muscle strain.
Ah ha, proves what I've suspected for many years now. And with more and more viruses out there, who knows what they'll trigger in our systems.
Amazing reading...they might be onto something.
Still nothing to suggest that you can catch cancer. Though there are several viruses that when combined with other factors enhance the likelihood you'll develop cancer - and these you most certainly can catch.
The short answer is yes, at leas for some cancers. Kaposi's sarcoma as the article mentions, for one, and it is proven that Feline Leukemia is transmissible.
One of my conspiracy theories is that this was done to the guy (forget name) who shot Oswald. He looked like a typical hit man, and died from cancer not long after they put him in prison. I figure it was to prevent him from saying who hired him. I remember reading about testing cancers given to lab mice somewhere about that same time.
So, if you have insomnia you'll be safe?