The Checkup: sinus infection


Posted at 07:00 AM ET, 09/13/2012

What causes sinus infections?

New research suggests chronic sinusitis may occur when a species of protective bacteria is depleted in the sinuses.

By Jennifer LaRue Huget  |  07:00 AM ET, 09/13/2012 |  Permalink  |  Comments ( 0)
Tags:  sinus infection, sinusitis