This is the story of a man who had a
tapeworm living in his brain for at least
four years. You can see the worm
moving from one side of his brain to the
other in this series of images, taken over
that timespan:
(Nagui Antoun)
This 50-year-old man came to the
hospital complaining of headaches,
weird smells, seizures, and memory
problems. Eventually, Tim Chester of
Mashable reports, the doctors did brain
surgery, found the tapeworm, and
removed it.
Now, how did this person get a
tapeworm in his brain? It's because it
wasn't any ordinary tapeworm.
Ordinary tapeworms live in stomachs,
and you can find them in dogs and cats
in the United States because fleas can
carry tapeworm larvae.
This brain tapeworm is a very rare and
different species, called Spirometra
erinaceieuropaei. It lives in some Asian
countries (this patient had recently been
to China) and can be acquired through
eating undercooked frog meat or
drinking contaminated water.
Scientists later sequenced its genome —
the first of this species. They hope to find
clues in its DNA of what kinds of drugs
will best fight it in the future.
They published this tale, and its scientific
results, in the journal Genome Biology
on November 21, 2014.

-Yahoo News