A secondary infection is a bacterial or viral illness that develops following a first illness. The second infection may develop because a person's immune system is stressed or weakened.
The secondary infection may prolong the first infection or make it more severe.
Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical ReviewerDavid Messenger, MD
Current as ofJune 4, 2014
WebMD Medical Reference from Healthwise