Four members of the Matsigenka tribe in remote Peru, including three children, have allegedly died since two Westerners arrived to film The World's Lost Tribes late last year.
Peruvian government officials claim the area of Cumerjali has since been hit by an epidemic of respiratory illness, The Daily Mail reports.
Because they have had limited contact with the outside world, some Matsigenka members have virtually no resistance to influenza and other common illnesses.
Most lost tribes don't need to be filmed for television. They need to be left alone.
For a look at how contact can destroy an Indian tribe, see my review of End of the Spear (pictured below).