North Central Public Health District says the Centers for Disease Control has sent out an advisory to healthcare providers regarding the importance of prescribing antiviral medications for patients with the flu this year.  Seasonal flu activity is high across the United States.  The CDC estimates that for the season to date, there have been at least 13 million illnesses, 120,000 hospitalizations, and 7,300 deaths from flu.  Antiviral treatment is an important additional tool alongside the flu vaccine in the prevention and control of flu.  The flu is nearing record levels in Oregon, according to modeling by Oregon Health & Science University.  In the Columbia Gorge, the percentage of flu tests coming back positive is climbing.  It stood at 39% for the week ending Dec. 10, which is higher than previous years.  The NCPHD says it’s not too late to get a flu shot.  Everyone 6 months and older is eligible. Call your doctor’s office for an appointment, or visit your local pharmacy.  All of the local pharmacies offer the high-dose flu vaccine for those 65 and older.