No other details regarding the child's death have been released at this time.
Across the country, the flu is considered to be widespread in two dozen states, including North Carolina.
According to the U.S. Centers for Disease Control and Prevention (CDC), the flu has already spread in nearly half of the country, with 19 states reporting high levels of influenza-like illness activity.
Centers for Disease Control and Prevention (CDC) data show the annual spread of certain strains of flu is beginning to increase.
Kaiser noted it's not too late to get vaccinated against influenza. "It's the best protection that we have to give people against the flu", said Russell, adding that children and adolescents, adults with underlying lung or heart conditions and the elderly should make sure they are immunized.
THE HSE has urged Limerick people in at-risk groups for the flu to get vaccinated, as the number of cases are expected to increase in the coming weeks. As of last week, this flu season had hospitalized 14.5 children younger than 5 years old, per 100,000 population.
The hospital also encourages the public to get their flu shots as soon as possible.
"Complacency worries me most of all. We're so used to the flu that we really underestimate it", Morse said.
As of the end of December, the rate of outpatient visits for influenza-like illnesses (ILIs) had almost doubled from the national baseline, as the 2018-19 influenza (flu) season continues to see a variation of influenza A strains predominately affect the country.
Because the peak period came later this season, it is likely to extend to the middle or end of next month, he said.
Regular hand washing, getting the flu shot, and sneezing into your arm rather than your hand are important preventive measures.
Symptoms include fever, cough, sore throat, runny or stuffy nose, muscle or body aches, headaches and fatigue. "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.