McAfee graduated in 1967 with a degree in mathematics from Roanoke College, according to the Virginia school.

CNN: STORY HIGHLIGHTS

He graduated in 1967 with a degree in mathematics from Roanoke College, according to the Virginia school.

CNN: STORY HIGHLIGHTS

According to his alma mater, Roanoke College, McAfee graduated from that Virginia school in 1967 as a mathematics major.

CNN: STORY HIGHLIGHTS

"Certainly we come in contact with bacteria all the time, " Renee Godard, lead author of the study and professor of biology and environmental studies at Hollins University, a private liberal arts college in Roanoke, Virginia.

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Friday isn't usually a busy day at the school's mall campus, Ben Kramer, an activities counselor for the community college, told The Roanoke Times.

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