And, Sherlock says, "It's not too late to get a flu shot".
During the last week of December, Marion County emergency room visits related to influenza-like illness was at 2.70% - this is considered high. Severe complications of influenza infection include pneumonia which can lead to hospitalization and death. A previous version misstated the age of children affected by the flu in a quote from Dr. Danuta Skowronski.
Centers for Disease Control and Prevention (CDC) data show the annual spread of certain strains of flu is beginning to increase.
The virus has already claimed the lives of 13 children so far this flu season. During last year's season, an estimated 80,000 people died - the highest number in 40 years. The H1N1 strain is predominant. "When you get vaccinated, you are not just protecting yourself, you are also protecting the people you love".
The program would include activities such as providing public funds for seasonal influenza vaccines to cover individuals in the target group, and developing mechanisms for the implementation of immunization and reporting, the statement said.
All of the 24 serious flu complications did not get vaccinated against the flu this season, with 15 infected with the influenza A H1N1 virus, she said, adding that three of the five who died were infected with the influenza A H3N2 virus and two were infected with the influenza A H1N1 virus.
Pregnant women or people with medical conditions related to their heart, lungs or immune system are encouraged to ask their primary care provider about antiviral medication as soon as they get symptoms.
"All of the fluologists have their own crystal ball, but flu is fickle so we're always very cautious about predicting, but I will say so far so good, not bad", he said. "Prescription flu medicine started early can shorten the duration of symptoms", Dr. Jeffrey Klausner, a professor of medicine in the division of infectious diseases at the University of California Los Angeles (UCLA), told Healthline.
Because the peak period came later this season, it is likely to extend to the middle or end of next month, he said.