Which U-M researcher was the first to isolate the influenza virus in the U.S.?
Jonas Salk
Oops! Jonas Salk worked to develop the polio vaccine. Try again.
Paul Offit
Oops! Paul Offit worked to develop a rotavirus vaccine. Try again.
Thomas Francis, Jr.
Correct! Thomas Francis successfully isolated the influenza virus at the University of Michigan in the early 1940s. He was a mentor to Jonas Salk, who would go on to develop the polio vaccine.