PIONEERING researchers often have to battle to get their work accepted. Take
the case of parasitologist Koichiro Fujita, who decided to put into practice his
belief that a clean environment is destroying our immunity to germs and
parasites.
When Fujita, from Tokyo Medical and Dental University, studied tropical
diseases in Borneo he noticed how healthy children were, despite—or was it
because of?—the large number of parasites they carried. So four years ago
he introduced a tapeworm into his own gut.
It has done so well that his intestines now house four tapeworms, all of them
thriving, he says.…
