well this is the new branch of cdc studying parasites and the source of the unexplained dermapathy, morgellons page click here to see unexplaied dermapathy page:
http://www.cdc.gov/unexplaineddermopathy/ . here is new page found on that page as the source for that pages information:
http://www.cdc.gov/nczved/ . yes says parasites DO occur in developed countries, and a wide variety of them and vectors, (DUH) . here is the link:
http://www.cdc.gov/ncidod/dpd/aboutparasites.htm . here is a list of some parisitc diseases a-z, notice that delusions off parisitosis has been removed, yeah!

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http://www.cdc.gov/ncidod/dpd/parasites/index.htm . here is a section from cdc page speaking of zoonotic diseases:
http://www.cdc.gov/ncidod/EID/vol12no12/06-1281.htm . (LC).