The Oklahoma State Department of Health says there have been two additional flu-related deaths in the state and 34 more hospitalizations due to influenza.
The health department report released Thursday shows there have now been 25 deaths and 862 hospitalizations since the start of the flu season in September.
The season runs through May.
The latest deaths were in Nowata and Washington counties.
Tulsa County has had six deaths due to flu while Oklahoma and Comanche counties have each had three.
Washington and Pittsburg counties each reported two deaths.
Single deaths are reported in Blaine, Cleveland, Creek, Mayes, McIntosh, Nowata, Rogers and Stephens counties.
Tulsa County leads the state in flu-related hospitalizations (258) and flu-related deaths (6). Oklahoma County is second with 114 hospitalizations and three deaths.
Counties in eastern Oklahoma with hospitalizations since September 2012 include Adair (13), Cherokee (5), Creek (33), Delaware (1), Latimer (4), Mayes (4), McCurtain (3), McIntosh (8), Muskogee (29), Nowata (2), Okmulgee (11), Osage (11), Ottawa (1), Pawnee (3), Pittsburg (10), Rogers (23), Sequoyah (1), Wagoner (20) and Washington (13).
The Associated Press contributed to this report.