““antibody, which she administered via their nasal passages. The problem was, her therapy didn’t effectively cross the blood-brain barrier and reach the plaques in the parts of the brain affected by Alzheimer’s. In what might go down as one of the greatest twists of scientific luck, Solomon decided to attach her antibody to a virus called M13 to transport it across the blood-brain barrier. M13 was a special type of virus called a bacteriophage—a virus that infected only bacteria. And M13 infected only one type of bacteria: Escherichia coli, or E. coli. To Solomon’s surprise, the antibody, when attached to M13, showed great success in her trials. But what was truly surprising was that the group of mice treated with the M13 virus alone—without Solomon’s antibody therapy—””
