"We know he visited Charlotte, Chimney Rock, and Duke University," she said. "We know that he began to feel badly last Sunday and left Duke University to drive back to south Florida."
Before the human case was announced, Martin Hugh-Jones, a professor at Louisiana State University's College of Veterinary Medicine, said the summer has been a relatively quiet one for anthrax cases in animals, though there were outbreaks.
"This year we're at the end of a very bad outbreak in northern Minnesota, a small outbreak in South Dakota and one outbreak in Alberta [Canada]," he said. "There were also a whole lot of dead deer with the disease found in west Texas."
"Last year was a bad year — about 250 animals died from it," he said. "But overall, it's not a major problem — especially compared to, say, parasites, pneumonia."
ABCNEWS' Michael S. James and Amanda Onion in New York, and Peter D'Oench in Miami, contributed to this report.