Rady Ananda reports in Activist Post:
Imagine having the mental prowess to be able to create living filaments heretofore unknown, that can reproduce themselves, some of which come with identifying letters embossed on them, and then to make them extrude from beneath your skin, all against your conscious will.
Sound like science fiction? It’s not, says the US Centers for Disease Control.
Despite having spent four years and $600,000, and using the world’s largest forensic database, the premier health agency reports it is unable to identify the source of the fibers emanating from those suffering with Morgellons. 
The CDC suggests that four out of a hundred thousand people -- the rate of infection in Northern California -- are imagining these filaments into existence.
Comprising an array of physical and mental symptoms , Morgellons is distinguished by novel fibers that protrude from the skin, causing lesions and sores that do not heal, or that heal very slowly.
“We conducted an investigation of this unexplained dermopathy to characterize the clinical and epidemiologic features and explore potential etiologies,” the paper explains. The only potential etiology suggested was that the patients were delusional: