Five people have now shown up as being exposed to anthrax after a contaminated letter at NBC Nightly News was identified.
A letter addressed to Senate Majority Leader Tom Daschle has tested positive for anthrax.
In Florida today, officials announced that they had found no additional cases of anthrax among the 965 people tested.
A NBC Nightly News employee in New York has tested positive for a skin anthrax infection, not the inhaled form of anthrax that killed a Florida man last week.
A third person who worked in the American Media Inc. building in Boca Raton, Florida has tested positive for anthrax.
Federal health officials today said they doubt the anthrax bacteria that killed one man and infected another in Boca Raton, Fla. could have occurred naturally.
The FBI is investigating how a co-worker of the Florida man who died of pulmonary anthrax last week could have come into contact with the rare disease.
A 63-year-old Florida man died of pulmonary anthrax today, one day after he was diagnosed with the fatal disease. Officials say there is no evidence that the infection was the result of bioterrorism.
A 63-year-old Florida man was diagnosed with pulmonary anthrax Thursday, but officials say there is no evidence that the infection is the result of bioterrorism.
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