State public health officials now say the number of flu-related deaths this season is 15.
Two-thirds of those deaths have been reported in the southwest corner of the state.
The Idaho Department of Health and Welfare says Idaho typically has about a dozen flu-related deaths each season. The flu season begins Oct. 1.
The last severe season for Idaho occurred in 2003-04 when 28 deaths tied to influenza were reported.
Of this year's total, 1 flu-related death was reported in northern Idaho, two in eastern Idaho. Two more cases involved people who died in the state but were not residents.
To find where flu shots are available in your area, go to http://goo.gl/ZtGMC.