Some flu strains can make mice forgetful

Memory trouble and brain changes lingered months after infection

H3N2 flu viruses

BRAIN DRAIN  Certain influenza viruses, like the H3N2 strain shown in this transmission electron micrograph, can cause memory trouble and brain damage in mice months after infection, a new study shows.

Dr. Fred Murphy/CDC

With fevers, chills and aches, the flu can pound the body.