Actually, in the details of the story you find that you can "enjoy" the infection elsewhere...

"Only five states — New York, California, Texas, Oregon and Illinois — report the disease, and the data is inconsistent. Oftentimes, departments rely on each other to deal with paperwork, and the numbers are never recorded, Smith says. As a result, not much is known about tapeworm outbreaks in the U.S. — or the parasites themselves."

It also sounds as though the long dormancy of the symptoms make it extremely difficult to determine where it was contracted.