A repertory of rare exotic human viruses is essential for the development of successful therapy at the genetic level.

"We have an exotic virus that now has established itself in the United States."

However," he said in an interview, "there's no need to reach overseas for exotic viruses transmitted by mosquitoes.

"It poses no danger to the public," he said, because the laboratory studies exotic viruses that do not infect humans.

What we now know is we have this exotic virus here in the northeastern United States.

Federal law now prohibits manufacturing vaccines using live infectious exotic viruses.

But this exotic virus gets attention disproportionate to its human toll for two reasons.

Even in travelers from Africa, experts stress that doctors should exclude common ailments before looking for an exotic virus.

In this Year of the Mosquito, some people are looking for terrorists to blame for the outbreak of exotic viruses.

THERE is an exotic virus, unknown to science, that affects only tourists.