How about next time we discover an isolated tribe deep in the jungle that has never been touched by modern man -- we just leave them alone! Brazilian scientists made contact with a tribe just like that.  They had no natural immunity or modern medicine for diseases we see every day.  The tribe was deep in the Amazon near the Peruvian border and the tribe members quickly caught the flu! Five men and two women were affected and quickly quarantined for their own safety. I imagine it was really scary for them, but they finally agreed to take medicine, so no one died, and they were given flu shots before they went back to the jungle. Now they're afraid there's still the possibility they may have taken the flu back to their home and spread it to other tribespeople. One expert said, "Only time will tell if they reacted quickly enough to divert a catastrophic epidemic."