scientist decides to research parasite he found in his own mouth.

Early one morning in December, Jon Allen had decided that enough was enough. He was up anyway, having taken his young son back to bed after a trip to the bathroom. Allen returned to the bathroom with a pair of #5 super-fine-tip forceps, drew a deep breath, and carefully fished a three-quarter-inch long parasitic worm out of his own mouth.

Allen, an assistant professor in William & Mary's Department of Biology, had been experiencing "intermittent rough areas" that he could feel with his tongue. The rough areas seemed to migrate around his mouth and Allen, whose specialty is invertebrate biology, suspected that he might have been harboring an unwanted invertebrate guest.

Once he got the worm out of his mouth, Allen did what any good scientist would do: He inserted the worm, alive, intact and still wriggling, into a jar of his own saliva and headed for the lab.

Allen arrived at William & Mary's Integrated Science Center when it was still dark and he was still in his pajamas. He put the worm under his microscope. The specimen turned out to be a nematode known as Gongylonema pulchrum, a member of a genus of parasites that are more often found in livestock than people.

In fact, Allen is only the 13th known human in the U.S. to be infected with Gongylonema pulchrum, a distinction noted in "Gongylonema pulchrum Infection in a Resident of Williamsburg, Virginia, Verified by Genetic Analysis," a paper co-authored by Allen and Aurora Esquela-Kerscher of the Department of Microbiology and Molecular Cell Biology in the Leroy T. Canoles Jr. Cancer Research Center at Eastern Virginia Medical School. Their paper was published in the American Journal of Tropical Medicine and Hygiene.

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