http://www.nytimes.com/2001/11/29/us/a-nation-challenged-overseas-puzzle-us-confirms-anthrax-in-chilean-letter.htmlA NATION CHALLENGED: OVERSEAS PUZZLE; U.S. Confirms Anthrax in Chilean Letter
By CLIFFORD KRAUSS and ANDREW C. REVKIN
Published: November 29, 2001
Federal health officials yesterday confirmed the presence of anthrax in samples Chilean authorities said they had taken from a letter from Florida. But the anthrax was not the strain that had killed five Americans and was most likely to have originated in Chile, officials said.
In the search for a source, Chilean public health officials said they had found no traces of anthrax in the offices and other environs of Dr. Antonio Banfi, the pediatrician in Santiago who received the letter two weeks ago. They said they planned to provide American investigators with the letter, a solicitation from a medical publishing company in Orlando, Fla., for further analysis.
American law enforcement and health officials had expressed frustration in recent days that they did not have the letter, but only bacteria grown by Chilean officials from spores said to be taken from the letter. Because of that, they said, it was possible that the anthrax came from laboratory contamination.